WO2011048784A1 - ポリマーの精製方法およびポリマー - Google Patents
ポリマーの精製方法およびポリマー Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G61/00—Macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain of the macromolecule
- C08G61/02—Macromolecular compounds containing only carbon atoms in the main chain of the macromolecule, e.g. polyxylylenes
- C08G61/04—Macromolecular compounds containing only carbon atoms in the main chain of the macromolecule, e.g. polyxylylenes only aliphatic carbon atoms
- C08G61/06—Macromolecular compounds containing only carbon atoms in the main chain of the macromolecule, e.g. polyxylylenes only aliphatic carbon atoms prepared by ring-opening of carbocyclic compounds
- C08G61/08—Macromolecular compounds containing only carbon atoms in the main chain of the macromolecule, e.g. polyxylylenes only aliphatic carbon atoms prepared by ring-opening of carbocyclic compounds of carbocyclic compounds containing one or more carbon-to-carbon double bonds in the ring
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F32/00—Homopolymers and copolymers of cyclic compounds having no unsaturated aliphatic radicals in a side chain, and having one or more carbon-to-carbon double bonds in a carbocyclic ring system
- C08F32/08—Homopolymers and copolymers of cyclic compounds having no unsaturated aliphatic radicals in a side chain, and having one or more carbon-to-carbon double bonds in a carbocyclic ring system having two condensed rings
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- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F6/00—Post-polymerisation treatments
- C08F6/14—Treatment of polymer emulsions
- C08F6/16—Purification
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2261/00—Macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain of the macromolecule
- C08G2261/30—Monomer units or repeat units incorporating structural elements in the main chain
- C08G2261/33—Monomer units or repeat units incorporating structural elements in the main chain incorporating non-aromatic structural elements in the main chain
- C08G2261/332—Monomer units or repeat units incorporating structural elements in the main chain incorporating non-aromatic structural elements in the main chain containing only carbon atoms
- C08G2261/3324—Monomer units or repeat units incorporating structural elements in the main chain incorporating non-aromatic structural elements in the main chain containing only carbon atoms derived from norbornene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2261/00—Macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain of the macromolecule
- C08G2261/40—Polymerisation processes
- C08G2261/41—Organometallic coupling reactions
- C08G2261/418—Ring opening metathesis polymerisation [ROMP]
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2261/00—Macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain of the macromolecule
- C08G2261/70—Post-treatment
- C08G2261/71—Purification
- C08G2261/712—Catalyst removal
Definitions
- the present invention relates to a polymer purification method and a polymer.
- optical materials such as microlenses, imaging lenses, optical elements (microlens arrays, optical waveguides, optical switching, Fresnel zone plates, binary optical elements, blaze diffractive optical elements, photonic crystals, etc.) for digital camera modules, ArF High-purity, highly transparent resin for use in semiconductor manufacturing process materials such as resist materials for excimer laser exposure and EUV exposure, anti-reflection filters, recording media, display materials, and electronic device materials such as organic EL and liquid crystal plastic members
- semiconductor manufacturing process materials such as resist materials for excimer laser exposure and EUV exposure, anti-reflection filters, recording media, display materials, and electronic device materials
- resist materials for excimer laser exposure and EUV exposure anti-reflection filters
- recording media such as organic EL and liquid crystal plastic members
- electronic device materials such as organic EL and liquid crystal plastic members
- a cyclic olefin monomer is converted into a coordination polymerization catalyst, an addition polymerization catalyst, a living radical polymerization catalyst, or a ring-opening metathesis polymerization catalyst and a hydrogenation reaction catalyst (residual double bonds after ring-opening metathesis polymerization). It is known to polymerize using a hydrogenation catalyst (hereinafter referred to as hydrogenation catalyst). Because the metal component contained in the catalyst remains in the cyclic olefin polymer, discoloration in polymer materials and products, deterioration of optical properties, adverse effects on electrical and electronic properties, or metal contamination in the semiconductor manufacturing process, etc. Avoiding these problems is a challenge in the development of advanced technology applications.
- a method for removing a residual metal component from a polymer As a method for solving this problem, a method for removing residual metal in a cyclic olefin polymer product produced using a transition metal catalyst, for example, a method in which a solution of a coordination copolymer of a cyclic olefin monomer and an olefin is contacted with an alkali or an aqueous acid solution, or A method of contacting a solution of a coordination copolymer of a cyclic olefin monomer and an olefin with a filter medium such as diatomaceous earth (Patent Document 1), or a cyclic olefin polymer obtained by addition polymerization of a cyclic olefin monomer with a palladium-based catalyst There is known a method (Patent Document 2) of reducing palladium, which was 6.0 ppm per unit mass in a polymer, to 0.13 ppm by
- Patent Document 3 a method for purifying a polymer obtained by a ring-opening metathesis polymerization reaction and a hydrogenation reaction, a polymer solution containing a polymerization catalyst residue is treated with an adsorbent supporting a hydrogenation catalyst, titanium derived from the polymerization catalyst, etc.
- Patent Document 3 a method for obtaining a hydrogenated thermoplastic norbornene polymer having a metal content of 1 ppm or less.
- Patent Document 4 discloses the following method. A cyclic olefin monomer containing an ester is subjected to ring-opening metathesis polymerization using a tungsten-based catalyst and then hydrogenated with a ruthenium-based complex catalyst to obtain a ring-opening metathesis polymer hydrogenated solution. Thereafter, the oxidizing agent or basic compound is added to the ring-opening metathesis polymer hydrogenated solution, and the operation of extracting the residual metal component is repeated to remove the metal component in the poor solvent phase. Then, tungsten in the polymer is reduced to 3 ppm and ruthenium to less than 0.1 ppm. Furthermore, Patent Document 5 discloses the following method.
- Cyclic olefin monomer having a cyano group is subjected to ring-opening metathesis polymerization with a molybdenum catalyst. Thereafter, trimethylenediamine is added and stirred, and then the polymer solution is added to methanol to precipitate a ring-opening metathesis polymer. Furthermore, after making it contact with a ring-opening metathesis polymer and an acidic compound, a metal component is reduced from 430 ppm to 30 ppm by discharging to methanol.
- Patent Document 6 discloses the following method. 3,6-Epoxy-1,2,3,6-tetrahydrophthalic anhydride is subjected to ring-opening metathesis polymerization with bis (tricyclohexylphosphine) benzylidene ruthenium chloride, which is a ring-opening metathesis catalyst. Activate. Thereby, a cyclic olefin polymer containing an oxygen atom in the main chain of the polymer is obtained. The solution containing this polymer is passed through activated alumina three times and subjected to an adsorption treatment to remove and purify the transition metal derived from the polymerization catalyst.
- Patent Documents 1 to 3 are directed to a polymer that does not contain a heteroatom that can easily form a coordination bond with a catalytic metal in the skeleton of a cyclic olefin polymer.
- Patent Document 4 since it is necessary to repeat complicated extraction and separation operations of the poor solvent phase and the good solvent phase, there is room for improvement in the removal efficiency of the residual metal component.
- a liquid containing a cyclic olefin polymer containing at least the repeating structural unit [A] represented by the general formula (1) and a metal component is brought into contact with an organic compound containing a basic functional group and an acidic functional group. Then, a method for purifying a polymer, wherein the liquid is brought into contact with a basic adsorbent to remove a metal component contained in the liquid.
- R 1 to R 4 is alkoxycarbonyl having 2 to 20 carbon atoms, alkoxyalkyloxycarbonyl having 3 to 20 carbon atoms, alkoxycarbonylalkyloxycarbonyl having 4 to 20 carbon atoms, or carbon number
- R 1 to R 4 may be bonded to each other to form a ring structure
- X 1 represents —O—, —S—, —NR 5 —, -PR 5 -, and -CR 5 R 6 - from (R 5, R 6 each represent hydrogen or alkyl having 1 to 20 carbon atoms independently) selected, be the same or different
- the organic compound containing a basic functional group and an acidic functional group is nicotinic acid, isonicotinic acid, picolinic acid, 2,2′-bipyridine-4,4′-dicarboxylic acid, or 3-pyridinesulfonic acid.
- the method for purifying a polymer according to any one of [1] to [3].
- the liquid containing the cyclic olefin polymer is brought into contact with the organic compound containing a basic functional group and an acidic functional group, and an association product is formed by the metal component and the organic compound contained in the liquid.
- Form the A basic adsorbent is brought into contact with the liquid in which the association product is formed, and the association product contained in the liquid is adsorbed on the basic adsorbent to remove the metal component contained in the liquid.
- the liquid containing the cyclic olefin polymer is brought into contact with an organic compound containing a basic functional group and an acidic functional group, and then the cyclic olefin polymer is contained in a packed tower containing a basic adsorbent.
- the liquid containing the cyclic olefin polymer and an organic compound containing a basic functional group and an acidic functional group are mixed, and then the basic adsorbent is added to the mixture.
- R 7 to R 10 are each independently hydrogen or alkyl having 1 to 10 carbon atoms, and X 2 is —O—, —S—, —NR 11 —, —PR 11 —, or — CR 11 R 12 — (wherein R 11 and R 12 each independently represents hydrogen or alkyl having 1 to 20 carbon atoms).
- the X 1 of the repeating structural units [A] is one X 2 out of the repeating structural units [B] is -O-, the other is -CH 2 - Purification of the polymer according to a [9] Method.
- the purification method of the polymer as described.
- R 13 to R 16 is selected from carboxylic acid or hydroxycarbonylalkyl having 2 to 20 carbon atoms, and the others are hydrogen, alkyl having 1 to 20 carbon atoms, halogen, 1 to carbon atoms) Selected from 20 alkyl halides, alkoxy having 1 to 20 carbon atoms, alkoxyalkyl having 2 to 20 carbon atoms, alkoxycarbonyl having 2 to 20 carbon atoms, or aryloxycarbonyl having 6 to 20 carbon atoms, and R 13 to R 16 may also be bonded together to form a ring structure, X 3 is -O -, - S -, - NR 17 -, - PR 17 -, and -CR 17 R 18 - from (R 17, R 18 each independently represents hydrogen or alkyl having 1 to 20 carbon atoms), which may be the same or different, and m represents 0 or 1.)
- a purification method capable of efficiently removing a metal component and reliably reducing the metal component, and a polymer purified by this purification method.
- FIG. 3 is a diagram showing the structural units of the polymers obtained in Synthesis Examples 1 to 7.
- the polymer purification method of the present invention contains a liquid containing a cyclic olefin polymer containing at least the repeating structural unit [A] represented by the general formula (1) and a metal component, and a basic functional group and an acidic functional group.
- This is a polymer purification method in which an organic compound is contacted, and then the liquid is contacted with a basic adsorbent to remove the metal component contained in the liquid.
- R 1 to R 4 is alkoxycarbonyl having 2 to 20 carbon atoms, alkoxyalkyloxycarbonyl having 3 to 20 carbon atoms, alkoxycarbonylalkyloxycarbonyl having 4 to 20 carbon atoms, or carbon number
- R 1 to R 4 may be bonded to each other to form a ring structure
- X 1 represents —O—, —S—, —NR 5 —, -PR 5 -, and -CR 5 R 6 - from (R 5, R 6 each represent hydrogen or alkyl having 1 to 20 carbon atoms independently) selected, be the same or different
- the metal component contained in the cyclic olefin polymer is mainly a residual metal component derived from a ring-opening metathesis polymerization catalyst used for ring-opening metathesis polymerization in the production of the cyclic olefin polymer, and ring-opening metathesis. It is a residual metal component derived from a hydrogenation catalyst that is hydrogenated to form a saturated bond with respect to a double bond in the main chain of the polymer obtained by polymerization.
- a polymer solution containing a metal component such as molybdenum, palladium, rhodium, ruthenium or tungsten contained in a highly polar cyclic olefin polymer solution containing a hetero atom is precipitated in a poor solvent.
- a metal component such as molybdenum, palladium, rhodium, ruthenium or tungsten contained in a highly polar cyclic olefin polymer solution containing a hetero atom is precipitated in a poor solvent.
- the polymer solution can be purified in a solution state without washing or separating the polymer solution, and the residual metal component can be effectively and efficiently removed.
- the cyclic olefin polymer to be purified is a cyclic olefin polymer containing at least the repeating structural unit [A] represented by the general formula (1) described above.
- At least one of R 1 to R 4 is alkoxycarbonyl having 2 to 20 carbon atoms, alkoxyalkyloxycarbonyl having 3 to 20 carbon atoms, alkoxycarbonylalkyloxycarbonyl having 4 to 20 carbon atoms, or 1 to 20 carbon atoms Selected from cyano.
- examples of the alkoxycarbonyl having 2 to 20 carbon atoms include methoxycarbonyl, ethoxycarbonyl, n-propoxycarbonyl, isopropoxycarbonyl, n-butoxycarbonyl, isobutoxycarbonyl, tert-butoxycarbonyl, cyclopentyloxycarbonyl, and cyclohexyl.
- tert-butoxycarbonyl 1-methylcyclopentyloxycarbonyl, 1-ethylcyclopentyloxycarbonyl, 1-methylnorbornyloxycarbonyl, 1-ethylnorbornyloxycarbonyl, 1-ethoxypropyloxycarbonyl, 1-ethoxy-1 -Methylethyloxycarbonyl, tetrahydrofuran-2-yloxycarbonyl, and tetrahydropyran-2-yloxycarbonyl, 1-adamantyloxycarbonyl, 2-adamantyloxycarbonyl are preferred.
- alkoxyalkyloxycarbonyl having 3 to 20 carbon atoms examples include methoxymethyloxycarbonyl, ethoxymethyloxycarbonyl, n-propoxymethyloxycarbonyl, isopropoxymethyloxycarbonyl, n-butoxymethyloxycarbonyl, isobutoxymethyloxycarbonyl Tert-butoxymethyloxycarbonyl, cyclopentyloxymethyloxycarbonyl, cyclohexyloxymethyloxycarbonyl, cyclooctyloxymethyloxycarbonyl, norbornyloxymethyloxycarbonyl, 1-methylcyclopentyloxymethyloxycarbonyl, 1-ethylcyclopentyloxymethyloxy Carbonyl, 1-methylnorbornyloxymethyloxycarbonyl, 1-ethylnorborni Ruoxymethyloxycarbonyl, 1-ethoxypropyloxymethyloxycarbonyl, 1-ethoxy-1-methylethyloxymethyloxycarbonyl, tetrahydrofuran-2-yloxymethyloxy
- alkoxycarbonylalkyloxycarbonyl having 4 to 20 carbon atoms examples include methoxycarbonylmethyloxycarbonyl, ethoxycarbonylmethyloxycarbonyl, n-propoxycarbonylmethyloxycarbonyl, isopropoxycarbonylmethyloxycarbonyl, n-butoxycarbonylmethyloxycarbonyl , Isobutoxycarbonylmethyloxycarbonyl, tert-butoxycarbonylmethyloxycarbonyl, cyclopentyloxycarbonylmethyloxycarbonyl, cyclohexyloxycarbonylmethyloxycarbonyl, cyclooctyloxycarbonylmethyloxycarbonyl, norbornyloxycarbonylmethyloxycarbonyl, 1-methylcyclopentyl Oxycarbonylmethyloxycal Bonyl, 1-ethylcyclopentyloxycarbonylmethyloxycarbonyl, 1-methylnorbornyloxycarbonylmethyloxycarbonyl, 1-ethylnorbornyloxycarbonyl
- tert-butoxycarbonylmethyloxycarbonyl 1-methylcyclopentyloxycarbonylmethyloxycarbonyl, 1-ethylcyclopentyloxycarbonylmethyloxycarbonyl, 1-methylnorbornyloxycarbonylmethyloxycarbonyl, 1-ethylnorbornyloxycarbonylmethyl Oxycarbonyl, 1-ethoxypropyloxycarbonylmethyloxycarbonyl, 1-ethoxy-1-methylethyloxycarbonylmethyloxycarbonyl, tetrahydrofuran-2-yloxycarbonylmethyloxycarbonyl, and tetrahydropyran-2-yloxycarbonylmethyloxycarbonyl 1-adamantyloxycarbonylmethyloxycarbonyl, 2-adamantyloxycarbonyl Tyloxycarbonyl is preferred.
- Examples of the cyano having 1 to 20 carbon atoms include a cyano group or a cyanoalkyl group having 2 to 20 carbon atoms such as cyanomethyl, cyanoethyl, 1-cyanopropyl, 1-cyanobutyl, 1-cyanohexyl and the like. Of these, cyano, cyanomethyl and cyanoethyl are preferred.
- R 1 to R 4 include hydrogen, alkyl having 1 to 20 carbon atoms, halogen, halogenated alkyl having 1 to 20 carbon atoms, alkoxy having 1 to 20 carbon atoms, alkoxyalkyl having 2 to 20 carbon atoms, carbon It is selected from the aryloxycarbonyl groups of 6 to 20.
- alkyl having 1 to 20 carbon atoms include methyl, ethyl, propyl, isopropyl, n-butyl, isobutyl, tert-butyl, cyclopentyl, cyclohexyl and the like.
- examples of the halogen include fluorine, chlorine, bromine and iodine.
- alkyl halide having 1 to 20 carbon atoms examples include fluoromethyl, chloromethyl, bromomethyl, difluoromethyl, dichloromethyl, dibromomethyl, trifluoromethyl, trichloromethyl, and tribromomethyl.
- alkoxy having 1 to 20 carbon atoms examples include methoxy, ethoxy, n-propoxy, isopropoxy, n-butoxy, tert-butoxy, and menthoxy.
- alkoxyalkyl having 2 to 20 carbon atoms examples include methoxymethyl, methoxyethyl, ethoxymethyl, tert-butoxymethyl, tert-butoxyethyl, methoxymenthyl and the like can be mentioned.
- examples of the aryloxycarbonyl having 6 to 20 carbon atoms examples include phenoxycarbonyl and naphthoxycarbonyl.
- R 1 ⁇ R 4 may have been bonded together to form a ring structure
- X 1 is -O -, - S -, - NR 5 -, - PR 5 -, and -CR 5 R 6 - from
- R 5 and R 6 each independently represents hydrogen or alkyl having 1 to 20 carbon atoms), and may be the same or different.
- j represents 0 or 1; As the alkyl having 1 to 20 carbon atoms, methyl and ethyl are preferable.
- the cyclic olefin polymer opens the cyclic olefin monomer corresponding to the repeating structural unit [A] represented by the general formula (1) and the cyclic olefin monomer corresponding to the repeating structural unit [B] represented by the general formula (2). It may be obtained by polymerization with a metathesis catalyst and hydrogenation under a hydrogenation catalyst.
- R 7 to R 10 are each independently hydrogen or alkyl having 1 to 10 carbon atoms, and X 2 is —O—, —S—, —NR 11 —, —PR 11 —, or — CR 11 R 12 - from (R 11, R 12 each independently represent hydrogen or alkyl having 1 to 20 carbon atoms) chosen, may be the same or different).
- R 7 to R 10 are each independently hydrogen, methyl having 1 to 10 carbon atoms, ethyl, propyl, isopropyl, n-butyl, isobutyl, tert-butyl, cyclopentyl, cyclohexyl, 1-ethyl cyclopentyl or an alkyl, such as 1-ethyl-cyclohexyl,
- X 2 is -O -, - S -, - NR 11 -, - PR 11 -, or -CR 11 R 12 -
- R 11 , R 12 Represents hydrogen and alkyl having 1 to 20 carbon atoms
- R 11 and R 12 are exemplified by alkyl having 1 to 20 carbon atoms such as methyl, ethyl, isopropyl, tert-butyl, cyclohexyl and the like.
- the structural molar ratio [A] / [B] of the structural unit [A] represented by the general formula (1) and the structural unit [B] represented by the general formula (2) is: 25/75 to 90/10, preferably 30/70 to 80/20, and more preferably 35/65 to 70/30.
- one of X 1 of the structural unit [A] and X 2 of the structural unit [B] Is preferably —O— and the other is —CH 2 —.
- the cyclic olefin polymer in the present invention includes a cyclic olefin monomer corresponding to the repeating structural unit [A] represented by the general formula (1), and a cyclic olefin corresponding to the repeating structural unit [B] represented by the general formula (2).
- a monomer, a cyclic olefin monomer corresponding to the repeating structural unit [C] represented by the general formula (3) may be polymerized with a ring-opening metathesis catalyst and hydrogenated under a hydrogenation catalyst.
- a cyclic olefin monomer corresponding to the repeating structural unit [A] represented by the general formula (1) and a cyclic olefin monomer corresponding to the repeating structural unit [B] represented by the general formula (2) can be produced by a ring-opening metathesis catalyst.
- R 1 to R 4 esters of some structural units [A] are converted to acid.
- it may be obtained by hydrolyzing with alkali, acid decomposition, or decomposition with heat to obtain a cyclic olefin polymer containing the structural unit [C] represented by the general formula (3).
- R 13 to R 16 is selected from carboxylic acid or hydroxycarbonylalkyl having 2 to 20 carbon atoms, and the others are hydrogen, alkyl having 1 to 20 carbon atoms, halogen, 1 to carbon atoms) Selected from 20 alkyl halides, alkoxy having 1 to 20 carbon atoms, alkoxyalkyl having 2 to 20 carbon atoms, alkoxycarbonyl having 2 to 20 carbon atoms, or aryloxycarbonyl having 6 to 20 carbon atoms, and R 13 to R 16 may also be bonded together to form a ring structure, X 3 is -O -, - S -, - NR 17 -, - PR 17 -, and -CR 17 R 18 - from (R 17, R 18 each independently represents hydrogen or alkyl having 1 to 20 carbon atoms), which may be the same or different, and m represents 0 or 1.) A part of R 13 to R 16 is selected from carboxylic acid or
- the carboxylic acid is a group having a carboxyl group (carboxylic acid group), and examples thereof include —COOH.
- Examples of the hydroxycarbonylalkyl having 2 to 20 carbon atoms include hydroxycarbonylmethyl, hydroxycarbonylethyl, hydroxycarbonylpropyl, hydroxycarbonylbutyl and the like.
- alkyl having 1 to 20 carbon atoms examples include methyl, ethyl, propyl, isopropyl, n-butyl, isobutyl, tert-butyl, cyclopentyl, cyclohexyl and the like.
- alkyl halide having 1 to 20 carbon atoms include fluoromethyl, chloromethyl, bromomethyl, difluoromethyl, dichloromethyl, dibromomethyl, trifluoromethyl, trichloromethyl, and tribromomethyl.
- alkoxy having 1 to 20 carbon atoms examples include methoxy, ethoxy, n-propoxy, isopropoxy, n-butoxy, tert-butoxy and menthoxy.
- alkoxyalkyl having 2 to 20 carbon atoms examples include methoxymethyl, methoxyethyl, ethoxymethyl, tert-butoxymethyl, tert-butoxyethyl, methoxymenthyl and the like.
- alkoxycarbonyl having 2 to 20 carbon atoms examples include methoxycarbonyl, ethoxycarbonyl, n-propoxycarbonyl, isopropoxycarbonyl, n-butoxycarbonyl, isobutoxycarbonyl, tert-butoxycarbonyl and the like.
- aryloxycarbonyl having 6 to 20 carbon atoms examples include phenoxycarbonyl and naphthoxycarbonyl.
- examples of the alkyl group for R 17 and R 18 include methyl, ethyl, propyl, and the like.
- the structural unit [A] represented by the general formula (1), the structural unit [B] represented by the general formula (2), and the structural unit represented by the general formula (3) [
- the structural molar ratio of C] ([A] + [B]) / [C] is 95/5 to 5/95, preferably 90/10 to 10/90, and more preferably 80/20 to 20/80.
- X 1 of the structural unit [A], X 2 of the structural unit [B] It is preferable that at least one of X 3 in the structural unit [C] is —O— and the other is —CH 2 —.
- bicyclo olefin monomers and tetracyclo olefin monomers in which X 1 in the general formula (1) is replaced with thia, aza, methylaza, phospha, and methylphospha are exemplified.
- Specific cyclic olefin monomers of the cyclic olefin polymer in which X 2 is —CH 2 — in the repeating structural unit [B] represented by the general formula (2) obtained by polymerization and hydrogenation include 4-oxatricyclo [5.2.1.0 2,6 ] dec-8-en-3-one, 4-oxa-5,5-dimethyltricyclo [5.2.1.0 2,6 ] dec-8-ene -3-one, 4-oxa-2,6-dimethyltricyclo [5.2.1.0 2,6 ] dec-8-en-3-one, 4-oxa-2,5,5,6- And tetramethyltricyclo [5.2.1.0 2,6 ] dec-8-en-3-one.
- specific cyclic olefin monomers of the cyclic olefin polymer in which X 2 is —O— include 4,10-dioxatricyclo [5.2.1.0 2,6 ] dec-8. -En-3-one, 4,10-dioxa-5,5-dimethyltricyclo [5.2.1.0 2,6 ] dec-8-en-3-one, 4,10-dioxa-2, 6-dimethyltricyclo [5.2.1.0 2,6 ] dec-8-en-3-one, 4,10-dioxa-2,5,5,6-tetramethyltricyclo [5.2. 1.0 2,6 ] dec-8-en-3-one and the like.
- the catalyst used for the polymerization reaction of the cyclic olefin monomer is not particularly limited as long as it is a catalyst capable of ring-opening metathesis polymerization of the cyclic olefin monomer, for example, an organic transition metal alkylidene complex catalyst such as molybdenum, tungsten, ruthenium, or Examples thereof include a ring-opening metathesis catalyst by a combination of an organic transition metal complex and a Lewis acid as a cocatalyst.
- W (N-2,6- Pr i 2 C 6 H 3) (thf) (OCMe 2 CF 3) and 2 Cl 2 or the like of the tungsten-based halogen complex Mo (N-2,6- Pr i 2 C 6 H 3) (thf) (OBu t) 2 Cl 2, Mo (N-2,6- Pr i 2 C 6 H 3) (thf) (OCMe 2 CF 3) in 2 Cl 2
- molybdenum such Ring-opening metathesis catalyst comprising an organic halogen complex and an organoaluminum compound, organotin compound or organometallic compound such as lithium, sodium, magnesium, zinc, cadmium, boron, etc.
- inorganic transition metal halogen compounds such as MoCl 6 , WCl 6 , ReCl 5 , TiCl 4 , RuCl 3 , IrCl 3 in the presence of an electron-donating compound such as an amine compound, an ester compound, and an ether compound, and a promoter A ring-opening metathesis catalyst in combination with the aforementioned Lewis acid can be used.
- a catalyst capable of polymerizing a highly polar cyclic olefin monomer containing a heteroatom can be efficiently removed.
- an organic transition metal alkylidene complex such as tungsten, molybdenum, ruthenium, etc.
- tungsten molybdenum
- ruthenium ruthenium
- the ring-opening metathesis polymerization catalyst of organic transition metal alkylidene complex specifically, W (N-2,6- Pr i 2 C 6 H 3) (CHBu t) (OBu t) 2, W (N- 2,6- Pr i 2 C 6 H 3 ) (CHBu t) (OCMe 2 CF 3) 2, W (N-2,6- Pr i 2 C 6 H 3) (CHBu t) (OCMe (CF 3) 2) 2, W (N- 2,6- Pr i 2 C 6 H 3) (CHCMe 2 Ph) (OBu t) 2, W (N-2,6- Pr i 2 C 6 H 3) (CHCMe 2 Ph) (OCMe 2 CF 3) 2, W (N-2,6- Pr i 2 C 6 H 3) (CHCMe 2 Ph) (OCMe 2 CF 3) 2, W (N-2,6- Pr i 2 C 6 H 3) (CHCMe 2 Ph) (OCMe (CF 3) 2) 2, W (N-2,6-
- Tungsten-based alkylidene catalyst such as, Mo (N-2,6- Pr i 2 C 6 H 3) (CHBu t) (OBu t) 2, Mo (N-2,6- Pr i 2 C 6 H 3) (CHBu t) (OCMe 2 CF 3) 2, Mo (N-2,6- Pr i 2 C 6 H 3) (CHBu t) (OCMe (CF 3) 2) 2, Mo (N-2,6- Pr i 2 C 6 H 3) (CHBu t) (OC (CF 3) 3) 2, Mo (N-2,6- Pr i 2 C 6 H 3) (CHCMe 2 Ph) (OBu t) 2, Mo (N-2,6- Pr i 2 C 6 H 3) (CHCMe 2 Ph) (OCMe 2 CF 3) 2, Mo (N-2,6- Pr i 2 C 6 H 3) (CHCMe 2 Ph) ( OCMe (CF 3) 2) 2 , Mo (N-2,6- Pr i 2 6 H 3) (CHCH
- Examples of the polymerization catalyst metal component to be removed in the polymer purification method of the present invention include transition metals such as molybdenum, tungsten, rhenium, iridium, tantalum, ruthenium, vanadium, titanium, palladium, and rhodium. Preferred are molybdenum, tungsten, and ruthenium.
- the molar ratio of the cyclic olefin monomer to the ring-opening metathesis polymerization catalyst of the organic transition metal alkylidene complex is 10 equivalents to 50,000 equivalents, preferably 50 equivalents to 30000 equivalents, more preferably 100 equivalents to 20000 equivalents.
- ethers such as tetrahydrofuran, diethyl ether, dibutyl ether, dimethoxyethane and dioxane
- aromatic hydrocarbons such as benzene, toluene, xylene and ethylbenzene
- aliphatic hydrocarbons such as pentane, hexane and heptane
- cyclohexane Aliphatic cyclic hydrocarbons such as pentane, cyclohexane, methylcyclohexane, dimethylcyclohexane or decalin
- halogenated hydrocarbons such as methylene dichloride, dichloroethane, dichloroethylene, tetrachloroethane, chlorobenzene or trichlorobenzene, esters such as methyl acetate or ethyl acetate, etc. Two or more of these may
- the polymerization reaction may be performed in the presence of a chain transfer agent such as olefins and dienes.
- a chain transfer agent such as olefins and dienes.
- the olefin used as the chain transfer agent include ⁇ -olefins such as ethylene, propylene, butene, pentene, hexene, octene, and further, vinyltrimethylsilane, allyltrimethylsilane, allyltriethylsilane, allyltriisopropylsilane.
- the diene include non-conjugated dienes such as 1,4-pentadiene, 1,5-hexadiene, and 1,6-heptadiene.
- these olefins or dienes may be used alone or in combination of two or more.
- the amount of the olefin or diene used is preferably in the range of 0.001 equivalent to 1000 equivalents, more preferably 0.01 equivalents to 100 equivalents, relative to 1 mol of the cyclic olefin monomer.
- the olefin or diene is preferably in the range of 0.1 equivalent to 2000 equivalents, more preferably 1 equivalent to 1000 equivalents, relative to 1 mol of the ring-opening metathesis polymerization catalyst.
- the monomer concentration of the polymerization reaction varies depending on the reactivity of the cyclic olefin monomer and the solubility in the polymerization solvent, and is not uniform.
- the concentration of the cyclic olefin monomer relative to 1 kg of the solvent is 0.001 kg / kg to 3 kg / kg. kg, preferably 0.01 kg / kg to 2 kg / kg, more preferably 0.02 kg / kg to 1 kg / kg.
- the reaction temperature varies depending on the kind and amount of the cyclic olefin monomer and the ring-opening metathesis catalyst, but is usually a reaction temperature of ⁇ 30 ° C. to 150 ° C., preferably 0 ° C. to 120 ° C., more preferably 15 ° C. to 100 ° C. Temperature.
- the reaction time is usually 1 minute to 10 hours, preferably 5 minutes to 8 hours, and more preferably 10 minutes to 6 hours.
- the reaction is stopped with aldehydes such as butyraldehyde, ketones such as acetone, alcohols such as methanol, etc., and a ring-opening metathesis polymer solution can be obtained.
- aldehydes such as butyraldehyde
- ketones such as acetone
- alcohols such as methanol, etc.
- the above-mentioned cyclic olefin polymer is obtained by hydrogenating the cyclic olefin polymer obtained by the ring-opening metathesis polymerization using a hydrogenation catalyst under hydrogen.
- This hydrogenation reaction may be a homogeneous catalyst or a heterogeneous catalyst as long as it doubles the double bond of the main chain of the cyclic olefin polymer containing a heteroatom, and electron donating properties such as amines and alcohols. These compounds may be used in combination.
- a hydrogenation catalyst in a heterogeneous catalyst, a supported type in which a metal such as palladium, platinum, nickel, rhodium, and ruthenium is supported on a support such as carbon, silica, alumina, titania, magnesia, diatomaceous earth, and synthetic zeolite.
- nickel naphthenate / triethylaluminum nickel acetylacetonate / triisobutylaluminum, cobalt octenoate / n-butyllithium, titanocene dichloride / diethylaluminum chloride, rhodium acetate, dichlorobis (triphenylphosphine) ) Palladium, chlorotris (triphenylphosphine) rhodium, dihydridotetrakis (triphenylphosphine) ruthenium, and the like. It may be hydrogenated using a hydrogenation catalyst comprising a compound.
- organometallic complexes include dichlorobis (triphenylphosphine) nickel, dichlorobis (triphenylphosphine) palladium, dichlorobis (triphenylphosphine) platinum, chlorotris (triphenylphosphine) rhodium, dichlorotris (triphenylphosphine) Osmium, dichlorohydridobis (triphenylphosphine) iridium, dichlorotris (triphenylphosphine) ruthenium, dichlorotetrakis (triphenylphosphine) ruthenium, trichloronitrosylbis (triphenylphosphine) ruthenium, dichlorobis (acetonitrile) bis (triphenylphosphine) Ruthenium, dichlorobis (tetrahydrofuran) bis (triphenylphosphine) ruthenium, chlorohydride De (tol) nickel
- Examples of the hydrogenation catalyst metal component to be removed in the polymer purification method of the present invention include transition metals such as palladium, platinum, nickel, rhodium and ruthenium. Ruthenium, palladium, and rhodium are preferable.
- the solution for the polymerization reaction may be used as it is, or a different solvent may be used.
- the amount of the hydrogenation catalyst that uses the unsaturated bond of the cyclic olefin polymer for hydrogenation is 5 ppm to 5000 ppm, preferably 10 ppm, based on the weight of the cyclic olefin polymer as the amount of the metal component of the heterogeneous or homogeneous catalyst. ⁇ 2000 ppm.
- the polymer concentration of the hydrogenation reaction varies depending on the type of the cyclic olefin polymer, the hydrogenation catalyst, and the solvent, and the concentration of the cyclic olefin polymer with respect to 1 kg of the solvent is usually 0.001 kg / kg to 3 kg / kg, preferably The range is 0.01 kg / kg to 2 kg / kg, more preferably 0.02 kg / kg to 1 kg / kg.
- the hydrogenation reaction of the cyclic olefin polymer is carried out at a hydrogen pressure of usually from normal pressure to 30 MPa, preferably from 0.5 MPa to 20 MPa, particularly preferably from 2 MPa to 15 MPa, and the reaction temperature is usually from 0 ° C. to 300 ° C.
- the temperature is preferably from room temperature to 250 ° C, particularly preferably from 50 ° C to 200 ° C.
- the reaction time is usually 1 minute to 50 hours, preferably 10 minutes to 30 hours, and more preferably 30 minutes to 20 hours.
- the hydrogenated product is preferably 50% to 100%, more preferably 80% to 100%, still more preferably 90% to 100% of hydrogen in the presence of a hydrogenation catalyst in the unsaturated bond of the cyclic olefin polymer. It can be obtained by adding.
- the cyclic olefin polymer in which at least one of R 13 to R 16 in the general formula (3) contains a structural unit [C] represented by carboxylic acid or hydroxycarbonylalkyl having 2 to 20 carbon atoms is R 13 to R
- at least one ester of R 1 to R 4 of some structural units [A] among the structural units [A] represented by the general formula (1) is acid or hydrolysis or SandatsuHanare by alkali or by thermal decomposition
- at least one of R 13 ⁇ R 16 in the general formula (3) is a carboxylic acid or carbon It may be prepared by any method of the structural unit [C] a cyclic olefin polymer containing represented by the 2-20 Hydroxycarbonylalky
- the method of polymerizing the cyclic olefin monomer corresponding to the structural unit [C] represented by the general formula (3) and further hydrogenating the structure unit [A] and the structural unit represented by the general formula (1) can be performed by a similar reaction in which a cyclic olefin monomer corresponding to the structural unit [B] represented by the general formula (2) is polymerized and further hydrogenated.
- At least one ester of R 1 to R 4 of the structural unit [A] represented by the general formula (1) is hydrolyzed or eliminated with an acid or an alkali, and represented by the general formula (3).
- a method in which at least one of R 13 to R 16 of the structural unit [C] is a carboxylic acid or a cyclic olefin polymer having 2 to 20 carbon atoms is sulfuric acid, hydrochloric acid, nitric acid, toluenesulfonic acid, Hydrolysis performed in the presence of an acidic catalyst such as fluoroacetic acid or acetic acid and water, or alkaline hydrolysis performed in the presence of acid elimination, alkaline catalyst such as sodium hydroxide, potassium hydroxide, barium hydroxide and the like Either may be done.
- the decomposition may be performed only by heating without adding an acid or an alkali.
- the reaction temperature at which at least one ester of R 1 to R 4 of the structural unit [A] represented by the general formula (1) is hydrolyzed or desorbed with acid or alkali, or thermally decomposed is usually 0 ° C. to The temperature is 300 ° C., preferably in the temperature range of room temperature to 250 ° C.
- the hydrolysis or acid elimination reaction of the ester with acid or alkali, or the elimination reaction with heat may be any stage after the polymerization reaction, after the hydrogenation reaction, or after removing the residual metal component of the polymerization catalyst and the hydrogenation catalyst. You may go on.
- an organic compound containing basic and acidic functional groups is contacted with a liquid containing the cyclic olefin polymer and a metal component derived from a catalyst, and the metal component and the organic compound are mixed.
- a step of forming an association with a basic functional group by coordination or charge transfer interaction (first step); By bringing the liquid into contact with a basic adsorbent, the associated product is brought into contact with the basic adsorbent, and an acidic functional group derived from an organic compound of the associated product and the basic adsorbent are ionically bonded or hydrogen bonded.
- the production catalyst metal component can be removed from the highly polar cyclic olefin polymer containing a heteroatom.
- the liquid containing the cyclic olefin polymer and the metal component may be a cyclic olefin polymer or a metal component dissolved in the liquid, or a cyclic olefin polymer or a metal component may not be dissolved. Also good.
- the basic functional group of the organic compound containing a basic functional group and an acidic functional group is a functional group that donates an electron pair, that is, an electron pair donor, and is either a ⁇ electron, an unshared electron pair, or an anion. It is an organic compound containing a basic functional group having The basic functional group is preferably a functional group containing a conjugated double bond carbon having at least ⁇ electrons, nitrogen, oxygen, phosphorus and / or a sulfur atom, such as a phenyl group, a cyclopentadienyl group, an amino group.
- Nitrogen-containing condensed heterocyclic functional groups such as pyridine and phenanthroline, functional groups such as ether group, cyano group, hydroxyl group, ester group, carbonyl group, phosphine, phosphate and other phosphorus-containing functional groups, thioether group, thiol group and sulfonyl group
- a nitrogen-containing condensed heterocyclic functional group such as pyridine and phenanthroline is preferable from the viewpoint of the strength of association with the metal component.
- the acidic functional group of the organic compound is a functional group that gives protons, that is, a proton donor, and is a phenol hydroxyl group, phosphoric acid, boric acid, carboxylic acid, sulfonic acid (phosphoric acid group, boric acid group, carboxyl group). , Sulfo group), etc., and any functional group that requires the ability to be adsorbed by a physical interaction such as ionic bond or hydrogen bond with a basic adsorbent, particularly from the viewpoint of adsorption power Carboxylic acid and sulfonic acid are preferred.
- organic compounds containing these basic and acidic functional groups include 2-cyclopentadienylethyltrimethylammonium chloride, 2-methoxyethylcyclopentadiene, 2-dimethylaminoethylcyclopentadiene, N, N-dimethyl.
- aromatic carboxylic acids and sulfonic acids having a nitrogen atom aromatic carboxylic acids and sulfonic acids having a nitrogen atom, sulfonic acids, phosphoric acids, boric acids and phenols, specifically, o-aminophenol, m -Aminophenol, p-aminophenol, 2-aminoethanephosphoric acid, 2-aminoethaneboric acid, 2-aminoethanesulfonic acid, 2- (2-pyridine) ethylphosphoric acid, nicotinic acid, isonicotinic acid, picolinic acid, 2,4-pyridinedicarboxylic acid, 2,5-pyridinedicarboxylic acid, 3,4-pyridinedicarboxylic acid, 3,5-pyridinedicarboxylic acid, 2,6-pyridinedicarboxylic acid, 2,3-pyridinedicarboxylic acid, 2, 2′-bipyridine-4,4′-dicarboxylic acid, 3-pyridinesulfonic acid
- aromatic carboxylic acids and sulfonic acids having a nitrogen atom specifically nicotinic acid, isonicotinic acid, picolinic acid, 2,4-pyridinedicarboxylic acid, 2,5-pyridinedicarboxylic acid, 3, 4-pyridinedicarboxylic acid, 3,5-pyridinedicarboxylic acid, 2,6-pyridinedicarboxylic acid, 2,3-pyridinedicarboxylic acid, 2,2′-bipyridine-4,4′-dicarboxylic acid, 3-pyridinesulfonic acid Etc.
- aromatic carboxylic acids and sulfonic acids having a nitrogen atom specifically nicotinic acid, isonicotinic acid, picolinic acid, 2,4-pyridinedicarboxylic acid, 2,5-pyridinedicarboxylic acid, 3, 4-pyridinedicarboxylic acid, 3,5-pyridinedicarboxylic acid, 2,6-pyridinedicarboxylic acid, 2,3-pyridinedicarboxylic acid, 2,
- nicotinic acid isonicotinic acid, picolinic acid, 2,2′-bipyridine-4,4′-dicarboxylic acid, and 3-pyridinesulfonic acid are preferable from the viewpoint of removing the metal component.
- the organic compound containing the basic functional group and the acidic functional group when the liquid containing the cyclic olefin polymer is brought into contact with the organic compound containing the basic functional group and the acidic functional group, the organic compound containing the basic functional group and the acidic functional group is uniformly in the solvent. It may be dissolved or dispersed as a solid in a solvent. Moreover, the organic compound containing a basic functional group and an acidic functional group may be added as it is to a liquid containing a cyclic olefin polymer, or may be added in a state of being dispersed or dissolved in a solvent, thereby increasing the solubility of the organic compound. Therefore, an alcohol such as methanol or ethanol, or a highly polar solvent such as DMF or water may be mixed.
- the concentration of the cyclic olefin polymer when contacting an organic compound containing a basic functional group and an acidic functional group with a liquid containing a cyclic olefin polymer varies depending on the type of the cyclic olefin polymer and the solvent used, and is not uniform.
- the concentration of the cyclic olefin polymer with respect to 1 kg of the solvent is 0.001 kg / kg to 3 kg / kg, preferably 0.01 kg / kg to 2 kg / kg, more preferably 0.02 kg / kg to 1 kg / kg. It is a range.
- the amount of the organic compound containing these basic functional group and acidic functional group is 1 equivalent to 10,000 equivalents, preferably 10 equivalents to 1000 equivalents, relative to 1 mole of the metal component to be contacted.
- the contact temperature is ⁇ 30 ° C. to 300 ° C., preferably 25 ° C. to 200 ° C.
- the contact pressure is from atmospheric pressure to 10 MPa.
- the contact time is usually 1 minute to 50 hours, preferably 10 minutes to 20 hours, and more preferably 30 minutes to 10 hours.
- filtration may be performed to remove insoluble matters.
- they may be filtered in multiple stages using filter media having different pore diameters.
- the filter medium to be used is not particularly limited, cellulose fibers, hydrocarbon polymer fibers, and the like can be selected depending on the type of insoluble components, the performance of the filter medium, and the like.
- As the filter material for cellulose fiber filter paper is preferable, and as the filter material for hydrocarbon-based polymer fiber, polypropylene and Teflon are preferable.
- the filter medium may be washed and used again. Further, examples of the filtration method include pressure filtration and vacuum filtration, and any method is not particularly limited.
- the pressure is 1 ⁇ 10 2 Pa or more, preferably 1 ⁇ 10 3 Pa to 1 ⁇ 10 6 Pa for filtration, and nitrogen or air is used as the pressurized gas.
- the degree of vacuum is not particularly limited as long as it is less than atmospheric pressure.
- the pore diameter of the filter medium is usually 0.01 ⁇ m to 50 ⁇ m, preferably 0.02 ⁇ m to 20 ⁇ m, and more preferably 0.05 ⁇ m to 10 ⁇ m.
- the association between the metal component and the organic compound containing a basic functional group or an acidic functional group is contacted with the basic adsorbent in the second step, and the association is adsorbed on the basic adsorbent to remain.
- the metal component is removed from the polymer solution.
- the basic functional group contained in the basic adsorbent is a functional group containing nitrogen and / or phosphorus, and is preferably an amino group.
- the basic adsorbent is preferably insoluble in a solvent, and the basic adsorbent may be an inorganic compound or an organic compound.
- the basic adsorbent has adsorbability for a compound having an acidic functional group.
- the basic adsorbent used in the present invention include anion exchange resins and amphoteric ion exchange resins.
- An ion exchange resin having an amino group such as an ion exchange resin or a styrene ion exchange resin having a pyridine ring is preferred.
- the particle diameter of the basic adsorbent is 10 ⁇ m to 5000 ⁇ m, preferably 100 ⁇ m to 3000 ⁇ m.
- the amount of the basic adsorbent used is 0.01 to 1 as a volume ratio when the volume of the cyclic olefin polymer solution is 1. Preferably, it is 0.05 to 0.5.
- the basic adsorbent may be washed with a solvent to remove impurities eluted from the adsorbent, and the solvent to be washed is a solvent used for the synthesis of the cyclic olefin polymer, an alcohol such as methanol or ethanol, or A solvent such as water may be used.
- the method for washing the basic adsorbent is not particularly limited. For example, even if the basic adsorbent is put into a tower and the washing solvent is passed through for washing, the basic adsorbent and the washing solvent are put in a container. May be mixed and washed by filtration or decantation
- an acidic adsorbent may be used in combination for the purpose of removing a basic component eluted from the basic adsorbent.
- the acidic adsorbent is preferably insoluble in a solvent in order to adsorb and remove basic components, and may be an inorganic compound or an organic compound.
- Examples of the acidic functional group contained in the acidic adsorbent include a sulfo group, a carboxyl group, and a hydroxyl group-containing compound.
- a styrene ion exchange resin having —SO 3 H a styrene ion exchange resin having —COOH
- An acrylic ion exchange resin having —COOH, a methacrylic ion exchange resin having —COOH, a phenol ion exchange resin, and the like may be mentioned.
- a compound having these functional groups may be grafted or copolymerized on a synthetic resin.
- crosslinking may be performed to obtain a solid insoluble in the solvent, or the molecular weight of these synthetic resins may be increased so as to be insoluble in the solvent.
- these acidic adsorbents styrene ion exchange resins having —SO 3 H are preferred.
- the acidic adsorbent may be used after washing in the same manner as the basic adsorbent.
- the acidic adsorbent may be mixed with the basic adsorbent or may be contacted with the solution after the contact treatment with the basic adsorbent.
- the amount of the acidic adsorbent used is 0.01 to 1, and preferably 0.1 to 0.5 as a volume ratio, where the volume of the basic adsorbent is 1.
- the liquid phase of the liquid containing the association product of the metal component and the organic compound containing the basic functional group and the acidic functional group is brought into contact with the solid phase of the basic adsorbent.
- the basic adsorbent may be put into a packed tower, and the liquid may be passed through the packed tower.
- the liquid and the basic adsorbent may be mixed and brought into contact with each other, and the basic adsorbent may be filtered. It may be separated by.
- the purification method of the present invention can be carried out using an apparatus as shown in FIGS. This will be described in detail below.
- the container 1 the liquid containing the cyclic olefin polymer and the metal component described above are mixed with the organic compound containing the basic functional group and the acidic functional group described above. Then, an association product of the metal component and the organic compound is formed. Thereafter, the solution containing the association product is passed through the packed tower 2 containing the basic adsorbent and returned to the container 1.
- symbol 3 of FIG. 1 has shown the pump. Further, as shown in FIG. 2, in the same manner as in FIG.
- the liquid containing the cyclic olefin polymer and the metal component described above and the organic compound containing the basic functional group and the acidic functional group described above are contained. Mix. Then, the solution containing the associated substance is passed through the packed tower 2 containing the basic adsorbent, and then collected in the liquid receiving container 4.
- the flow direction to the packed tower 2 may be any direction from the top to the bottom or the bottom to the top of the packed tower 2. In the case of the liquid flow direction from the bottom to the top, the packed column 2 containing the basic adsorbent may be either a fixed bed or a fluidized bed.
- the solution containing the associated substance from the container 1 to the packed tower 2 may be extracted from the tube at the lower part of the container 1 or the solution may be extracted from the upper part of the container 1 by inserting a tube.
- an apparatus as shown in FIG. 3 may be used.
- the container 5 the liquid containing the cyclic olefin polymer and the metal component described above and the organic compound containing the basic functional group and the acidic functional group described above are mixed. Then, an association product of the metal component and the organic compound is formed. Thereafter, the basic adsorbent is put into the container 5 and mixed with stirring. Thereafter, the mixture in the container 5 is passed through the filter 6 to filter the basic adsorbent, and the filtered solution is introduced into the liquid receiving container 7.
- the concentration of the cyclic olefin polymer when the aggregate is brought into contact with the basic adsorbent varies depending on the type of the cyclic olefin polymer and the solvent used, and is not uniform.
- the range is 001 kg / kg to 3 kg / kg, preferably 0.01 kg / kg to 2 kg / kg, more preferably 0.02 kg / kg to 1 kg / kg.
- the temperature at which the association product is brought into contact with the basic adsorbent is ⁇ 30 ° C. to 150 ° C., preferably 0 ° C. to 60 ° C.
- the contact pressure is from atmospheric pressure to 1 MPa.
- the contact speed in the case of liquid passing contact in a packed tower is usually 1 to 500 (m / hour), preferably 10 to 300 (m / hour) as a linear flow rate LV.
- the liquid flow (space) flow rate SV is 1 to 1000 (1 / hour), preferably 10 to 500 (1 / hour).
- the length, thickness, volume, and shape of the packed tower depend on the amount of processing, flow time, and economy, but may be operated within the range satisfying these linear flow rate and liquid flow rate.
- the contact time is usually 30 minutes to 48 hours, preferably 1 hour to 24 hours, more preferably 1 hour to 12 hours.
- Mixing may be performed by any of stirring blades, rotation, shaking, ultrasonic waves, and the like.
- you may repeat the polymer purification method of this invention which consists of said pre-process and post-process above several times as needed.
- the present invention provides a cyclic olefin having a total residual metal component content of 1000 ppb or less by the above-described purification method for removing a metal component (residual metal component) derived from a production catalyst from a highly polar cyclic olefin polymer containing a heteroatom.
- a polymer can be produced.
- This cyclic olefin polymer usually has a total residual metal component content of 1000 ppb or less, preferably 800 ppb or less, and more preferably 500 ppb or less.
- the lower limit of the residual metal component is not particularly limited, but is usually 10 ppb or more.
- stabilizers such as modifiers, such as antioxidant, surfactant, a plasticizer, stabilizers, such as a ultraviolet absorber, an antimicrobial agent, glass fiber, and an inorganic filler as needed.
- the cyclic olefin polymer having a total residual metal component content of 1000 ppb or less obtained by the method for purifying a cyclic olefin of the present invention is used for optical parts which are free from colored yellowing and requires high transparency, and organic EL and liquid crystal plastics. It can be used for semiconductor materials such as substrates or resist compositions, and electronic materials.
- the analytical value regarding the polymer obtained in the Example and the synthesis example was measured with the following method.
- Weight average molecular weight measurement Gel permeation chromatograph (GPC) was dissolved in 2 g of tetrahydrofuran to 10 mg of a polymer sample, polystyrene standard at 280-RI and UVIDEC-100-VI manufactured by JASCO Corporation at 40 ° C and a flow rate of 1.0 ml / min.
- GPC Gel permeation chromatograph
- a powder polymer sample was precisely weighed in a container, pyrolyzed with nitric acid in a microwave, and residual metal components were quantified with an ICP-MS apparatus of HP-4500, Agilent Technologies.
- the polymer sample of the solution was precisely weighed in a container, heated to evaporate the solvent, and then pyrolyzed with nitric acid in a microwave, and the residual metal component was quantified by the ICP-MS method.
- the return hydrogen gas was released.
- the obtained solution was filtered through a filter having a pore size of 1 ⁇ m to obtain 3.0 kg of a ring-opening metathesis polymer hydrogenated solution.
- 10 g of the resulting hydrogenated ring-opening metathesis polymer solution is added to 200 ml of pure water to precipitate a ring-opening metathesis polymer hydride, separated by filtration and vacuum-dried. 2.1 g of combined hydride was obtained.
- the hydrogenation rate calculated from 1 H-NMR of the obtained ring-opening metathesis polymer hydride was 100%, and the weight average molecular weight measured by GPC was 15000.
- the obtained ring-opening metathesis polymer hydrogenated solution had a molybdenum metal content of 2.49 ppm and a ruthenium metal content of 3.76 ppm.
- the polymer solution concentration was 20.9 wt%, the molybdenum metal content in the polymer was 12 ppm, and the ruthenium metal content was 18 ppm.
- dichlorotris (triphenylphosphine) ruthenium (47.9 g, 50.0 mmol) and triethylamine (5.1 g, 50 mmol) were added to 720 kg of the above solution in a 1 m 3 autoclave, and water was added at a hydrogen pressure of 9 MPa and 120 ° C. for 15 hours. Addition reaction was performed. After cooling, hydrogen was released to obtain 724 kg of a ring-opening metathesis polymer hydrogenated solution. 10 g of the resulting ring-opening metathesis polymer hydrogenated solution was obtained in the same manner as in Synthesis Example 1 to obtain 2.1 g of a ring-opening metathesis polymer hydride.
- the molybdenum metal content of the hydrogenated solution was 16.4 ppm, and the ruthenium metal content was 6.5 ppm.
- the polymer solution concentration was 21.0 wt%, the molybdenum metal content in the polymer was 78 ppm, and the ruthenium metal content was 31 ppm.
- the molybdenum metal content of the hydrogenated solution was 8.40 ppm and the ruthenium metal content was 6.72 ppm.
- the polymer solution concentration was 21.0 wt%, the molybdenum metal content in the polymer was 40 ppm, and the ruthenium metal content was 32 ppm.
- the tungsten metal content of the hydrogenated solution is 20.8 ppm
- the rhodium metal content is 7.94 ppm
- the polymer solution concentration is 18.9 wt%
- the tungsten metal content in the polymer is 110 ppm
- the rhodium metal content. was 42 ppm.
- the molybdenum metal content of the hydrogenated solution is 9.45 ppm
- the ruthenium metal content is 5.86 ppm
- the polymer solution concentration is 18.9 wt%
- the molybdenum metal content in the polymer is 50 ppm
- the ruthenium metal content was 31 ppm.
- the molybdenum metal content of the hydrogenated solution is 6.75 ppm
- the ruthenium metal content is 6.33 ppm
- the polymer solution concentration is 21.1 wt%
- the molybdenum metal content in the polymer is 32 ppm
- the ruthenium metal content was 30 ppm.
- Synthesis Example 1 shows that the molar ratio of the structural unit [A] to the structural unit [A] is 50:50.
- the other synthetic examples are displayed in the same manner.
- Example 1 In a 2 L autoclave, 1 kg of a THF solution of the hydrogenated ring-opening metathesis polymer obtained in Synthesis Example 1, 1.44 g (11.7 mmol) of isonicotinic acid, and 27 g of water were added and stirred under a nitrogen atmosphere. After heating at 100 ° C. for 6 hours, it was cooled to room temperature. This solution was filtered under pressure through a Teflon membrane filter having a pore size of 0.5 ⁇ m, 400 ml of a styrene ion exchange resin Diaion CR20 (manufactured by Mitsubishi Chemical Corporation) containing polyamine (containing an amino group) was added, and room temperature was added. Then, the ion exchange resin was separated by filtration.
- Example 2 In a 2 L autoclave, isonicotinic acid and water were added to 1 kg of a THF solution of the ring-opening metathesis polymer hydrogenated product obtained in Synthesis Example 2 in the same manner as in Example 1, heated at 100 ° C. for 3 hours, and cooled to room temperature. (First step). Next, 400 ml of Diaion CR20 was added to the cooled solution (second step). Further, the first step and the second step were repeated once again in this order. 10 g of the thus obtained ring-opening metathesis polymer hydrogenated solution was precipitated in the same manner as in Example 1 to obtain 1.7 g of a ring-opening metathesis polymer hydride.
- Example 3 0.1 kg (0.6 mmol) of 3-pyridinesulfonic acid and 27 g of water are added to 1 kg of the purified solution of Example 2 (liquid obtained by repeating the first step and the second step twice), and the mixture is stirred under a nitrogen atmosphere. The mixture was heated at 100 ° C. for 3 hours and cooled to room temperature. This solution was filtered, 400 ml of Diaion CR20 was added and filtered. 10 g of the thus obtained ring-opening metathesis polymer hydrogenated solution was precipitated in the same manner as in Example 2 to obtain 1.7 g of a ring-opening metathesis polymer hydride.
- the ester of the structural unit [B] is acid-eliminated to form the structural unit [C].
- Example 4 2.7 g (11 mmol) of 2,2′-bipyridine-4,4′-dicarboxylic acid and 27 g of water were added to 1 kg of the purified solution of Example 2 (liquid obtained by repeating the first step and the second step twice). The mixture was heated at 110 ° C. for 6 hours with stirring under a nitrogen atmosphere and cooled to room temperature. This solution was filtered, 200 ml of Diaion CR20 was added, and then filtered. 10 g of the solution of the hydrogenated ring-opening metathesis polymer thus obtained was precipitated in the same manner as in Example 2 to obtain 1.6 g of a hydrogenated ring-opening metathesis polymer.
- Example 5 1.2 g (9.8 mmol) of picolinic acid was added to 1 kg of the hydrogenated ring-opening metathesis polymer obtained in Synthesis Example 3, and the mixture was heated at 100 ° C. for 6 hours with stirring in a nitrogen atmosphere and cooled to room temperature (No. 1). One step). This solution was filtered, and 400 ml of Diaion CR20 was added (second step). Further, the first step and the second step were repeated once again in this order. 10 g of the solution of the hydrogenated ring-opening metathesis polymer thus obtained was precipitated in the same manner as in Example 2 to obtain 1.6 g of a hydrogenated ring-opening metathesis polymer.
- Example 6 2.5 g (20 mmol) of isonicotinic acid and 27 g of water were added to 1 kg of the hydrogenated ring-opening metathesis polymer obtained in Synthesis Example 4, and the mixture was heated at 110 ° C. for 6 hours with stirring in a nitrogen atmosphere. Cooled (first step). This solution was filtered, and 300 ml of basic adsorbent Diaion CR20 and 100 ml of acidic adsorbent styrene-based ion exchange resin Lebatit S100H (manufactured by Bayer) containing sulfonic acid groups were mixed. The second step was performed. The first step and the second step were further repeated twice.
- Example 7 To 1 kg of the ring-opening metathesis polymer hydrogenated product obtained in Synthesis Example 5, 1.5 g (12 mmol) of nicotinic acid and 27 g of water are added and heated at 110 ° C. for 6 hours with stirring in a nitrogen atmosphere, and then cooled to room temperature. (First step). This solution was filtered, and Diaion CR20300 ml and Levacit S100H100 ml were mixed in the same manner as in Example 6 to carry out the second step. Further, the first step and the second step were repeated once again in this order.
- Example 8 1 kg of the ring-opening metathesis polymer hydrogenated product obtained in Synthesis Example 6 was used instead of the ring-opening metathesis polymer hydrogenated product obtained in Synthesis Example 2, and 3-pyridinesulfone instead of isonicotinic acid.
- the same procedure as in Example 2 was performed except that 0.1 g (0.6 mmol) of acid was used and 300 ml of Diaion CR20 was used.
- 10 g of the solution of the hydrogenated ring-opening metathesis polymer thus obtained was precipitated in the same manner as in Example 2 to obtain 1.6 g of a hydrogenated ring-opening metathesis polymer.
- the molybdenum metal content in the polymer was 63 ppb and the ruthenium metal content was 200 ppb.
- Example 9 Instead of the ring-opening metathesis polymer hydrogenated product obtained in Synthesis Example 2, 1 kg of the ring-opening metathesis polymer hydrogenated product obtained in Synthesis Example 7, 1.2 g (9.8 mmol) of isonicotinic acid, and diaion The same procedure as in Example 2 was performed except that CR20 and 300 ml were used. 10 g of the hydrogenated ring-opening metathesis polymer solution thus obtained was precipitated in the same manner as in Example 2 to obtain 1.7 g of a hydrogenated ring-opening metathesis polymer. The molybdenum metal content in the polymer was 40 ppb and the ruthenium metal content was 180 ppb.
- Example 10 Except that in Example 2, Diaion CR20 was replaced with 600 ml of styrene ion exchange resin Diaion WA20 (Mitsubishi Chemical Corporation) containing a basic adsorbent CH 2 NH (CH 2 CH 2 NH) nH group. Performed as in Example 2. 10 g of the solution of the hydrogenated ring-opening metathesis polymer thus obtained was precipitated in the same manner as in Example 2 to obtain 1.61 g of a hydrogenated ring-opening metathesis polymer.
- Diaion CR20 was replaced with 600 ml of styrene ion exchange resin Diaion WA20 (Mitsubishi Chemical Corporation) containing a basic adsorbent CH 2 NH (CH 2 CH 2 NH) nH group.
- 10 g of the solution of the hydrogenated ring-opening metathesis polymer thus obtained was precipitated in the same manner as in Example 2 to obtain 1.61 g of a hydrogenated ring-opening metathesis polymer.
- Example 11 To a 250 L reactor, 165 kg of a THF solution (polymer concentration 20.7 wt%) of the ring-opening metathesis polymer hydrogenated product of Synthesis Example 2, 243 g (2 mol) of isonicotinic acid and water (4.7 kg) were added, and a nitrogen atmosphere was added. The mixture was heated at 100 ° C. for 6 hours with stirring, and then cooled to room temperature (first step). Diaion CR20, 25L was packed in a tower having an inner diameter of 250 mm, and connected to the lower part of the tower via a pump by a pipe from the lower part of the reactor, and a circulation pipe was formed to return to the upper part of the reactor.
- Example 12 To a 250 L reactor, add 165 kg of a THF solution of the ring-opening metathesis polymer hydrogenated product of Synthesis Example 2, 243 g (2 mol) of isonicotinic acid and 4.7 kg of water, and stir in a nitrogen atmosphere at 100 ° C. for 6 hours. After heating, it was cooled to room temperature (first step). 30L of Diaion CR20 and 10L of Levacit S100H are each packed in a tower with an inner diameter of 250 mm, connected in series to the lower part of the CR20 tower via a pump with a pipe from the lower part of the reactor, and a circulation pipe returning to the upper part of the reactor. Formed.
- the pump flow rate is 1.2 m 3 / hour
- the flow rate to each column is SV (40/1 / hour) and 120 (1 / hour) from the bottom of the reactor.
- the solution was fed to the reactor and continuously operated in 7 hours while returning to the reactor. All of the solution in the tower and piping was returned to the reactor (second step). Further, the first step and the second step were repeated once again in this order.
- 20 g (0.1 mol) of 3-pyridinesulfonic acid and water were added to the solution obtained by performing the first step and the second step twice, and the mixture was heated at 100 ° C. for 4 hours with stirring under a nitrogen atmosphere.
- Comparative Example 2 1 kg of a polymer THF solution similar to Comparative Example 1 was filtered through a Teflon membrane filter, 400 ml of Diaion CR20 was added, and the mixture was stirred at room temperature for 1 hour, and then the ion exchange resin was separated by filtration. 10 g of this solution of hydrogenated ring-opening metathesis polymer was precipitated in the same manner as in Comparative Example 1 to obtain 1.8 g of hydrogenated ring-opening metathesis polymer. The molybdenum metal content in the polymer was 47 ppm, the ruthenium metal content was 30 ppm, and no effect was observed.
- the molybdenum metal content in the polymer was 78 ppm, the ruthenium metal content was 30 ppm, the residual metal content was not changed at all, and no effect was observed.
- the method for purifying a highly polar polymer containing a heteroatom according to the present invention efficiently removes the residual catalyst metal component, thereby deteriorating optical properties due to discoloration such as yellowing in the product processing process, and electric / electronic Cyclic as a state-of-the-art material for optical parts, organic EL, liquid crystal plastic substrates, or resist compositions that require high transparency that does not adversely affect properties or cause metal contamination in the semiconductor manufacturing process Olefin polymers can be provided and are of great industrial value.
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Abstract
Description
触媒に含まれる金属成分が環状オレフィンポリマーに残存してしまうことでポリマー材料および製品における変色、光学特性の悪化、電気・電子特性への悪影響、または半導体製造プロセス内の金属汚染等が起こるため、これらの問題を回避することが最先端技術用途への展開において課題である。
エステルを含む環状オレフィンモノマーをタングステン系触媒により開環メタセシス重合した後、ルテニウム系錯体触媒で水添反応して開環メタセシス重合体水素添加物溶液を得る。その後、この開環メタセシス重合体水素添加物溶液に対し、酸化剤、あるいは塩基性化合物を添加し、残留金属成分を抽出する操作を繰り返し、貧溶媒相に金属成分を除去する。そして、ポリマー中のタングステンを3ppm、ルテニウムを0.1ppm未満に低減する。
さらに、特許文献5には、以下のような方法が開示されている。
シアノ基を有する環状オレフィンモノマーをモリブデン系触媒で開環メタセシス重合する。その後、トリメチレンジアミンを加え攪拌してからポリマー溶液をメタノールに加えて開環メタセシス重合体を析出する。さらに開環メタセシス重合体と、酸性化合物と接触させてから、メタノールに排出することにより、金属成分を430ppmから30ppmに低減する。
3,6-エポキシ-1,2,3,6-テトラヒドロフタル酸無水物を、開環メタセシス触媒であるビス(トリシクロヘキシルホスフィン)ベンジリデンルテニウムクロライドで開環メタセシス重合し、重合終了後に酢酸ビニルで不活性化する。これにより、ポリマーの主鎖に酸素原子を含有する環状オレフィンポリマーを得る。このポリマーを含む溶液を、活性アルミナに3回通過させて吸着処理することにより、重合触媒に由来する遷移金属を除去、精製する。
特許文献4に開示された方法では、貧溶媒相と良溶媒相の煩雑な抽出、分離操作を繰り返す必要があるため、残留金属成分の除去効率において改善の余地がある。
また、特許文献5に開示された方法においても、析出した環状オレフィンポリマーの回収、溶媒への再溶解等操作が煩雑で、残留金属成分の除去効率において改善の余地がある。
これに加え、特許文献4,5に開示された方法での、金属の除去レベルには必ずしも満足するものではなかった。
また、特許文献6に開示された方法においても、重合触媒に由来する金属を200ppmまでにしか低減することができず、精製方法として十分満足できるものではない。
本発明は上記のような課題を解決するためになされたものであって、効率よく残留金属成分を除去することができ、かつ、残留金属成分を確実に低減させることができる精製方法を提供することを目的とする。
[1]少なくとも一般式(1)で表される繰返し構造単位〔A〕を含有する環状オレフィンポリマーおよび金属成分を含む液と、塩基性官能基および酸性官能基を含有する有機化合物とを接触させ、次いで、前記液を塩基性吸着剤に接触させて、前記液中に含まれる金属成分を除去するポリマーの精製方法。
[3]前記有機化合物の塩基性官能基が電子対供与体であり、酸性官能基がプロトン供与体である[1]または[2]に記載のポリマーの精製方法。
前記会合物が形成された前記液に塩基性吸着剤を接触させて、前記液中に含まれる会合物を前記塩基性吸着剤に吸着させて、前記液中に含まれる前記金属成分を除去する[1]~[5]のいずれかに記載のポリマーの精製方法。
[8]前記環状オレフィンポリマーを含む前記液と、塩基性官能基および酸性官能基を含有する有機化合物とを混合し、その後、この混合物に対し、前記塩基性吸着剤を添加した後、前記塩基性吸着剤を分離し、前記金属成分を除去する[1]~[6]のいずれかに記載のポリマーの精製方法。
[9]前記環状オレフィンポリマーが、一般式(2)で表される繰返し構造単位〔B〕を含み、繰返し構造単位〔A〕と繰返し構造単位〔B〕とのモル比〔A〕/〔B〕が〔A〕/〔B〕=25/75~90/10である[1]~[8]のいずれかに記載のポリマーの精製方法。
[10]前記繰返し構造単位〔A〕のX1、前記繰返し構造単位〔B〕のX2うち一方が-O-であり、他方が-CH2-である[9]に記載のポリマーの精製方法。
[13][1]~[12]に記載のいずれかに記載の精製方法によって得られた、全残留金属成分の含有量が1000ppb以下である環状オレフィンポリマー。
はじめに、本発明の概要について説明する。
本発明のポリマーの精製方法は、少なくとも一般式(1)で表される繰返し構造単位〔A〕を含有する環状オレフィンポリマーおよび金属成分を含む液と、塩基性官能基および酸性官能基を含有する有機化合物とを接触させ、次いで、前記液を塩基性吸着剤に接触させて、前記液中に含まれる前記金属成分を除去するポリマーの精製方法である。
なお、R1~R4は、一部が炭素数2~20のアルコキシカルボニル、炭素数3~20のアルコキシアルキルオキシカルボニル、炭素数4~20のアルコキシカルボニルアルキルオキシカルボニル、または炭素数1~20のシアノから選ばれ、その他は、水素、炭素数1~20のアルキル、ハロゲン、炭素数1~20のハロゲン化アルキル、炭素数1~20のアルコキシ、炭素数2~20のアルコキシアルキル、炭素数6~20のアリールオキシカルボニルから選ばれるが、同じものであってもよい。
精製対象となる環状オレフィンポリマーは、少なくとも上述した一般式(1)で表される繰返し構造単位〔A〕を含有する環状オレフィンポリマーである。R1~R4のうち少なくとも一つが、炭素数2~20のアルコキシカルボニル、炭素数3~20のアルコキシアルキルオキシカルボニル、炭素数4~20のアルコキシカルボニルアルキルオキシカルボニル、または炭素数1~20のシアノから選ばれる。
炭素数1~20のアルキルとしては、例えば、メチル、エチル、プロピル、イソプロピル、n-ブチル、イソブチル、tert-ブチル、シクロペンチル、シクロヘキシル等が挙げられ、
さらに、ハロゲンとしては、フッ素、塩素、臭素、ヨウ素が挙げられ、
また、炭素数1~20のハロゲン化アルキルとしては、例えば、フルオロメチル、クロロメチル、ブロモメチル、ジフルオロメチル、ジクロロメチル、ジブロモメチル、トリフルオロメチル、トリクロロメチルまたはトリブロモメチル等が挙げられる。
炭素数1~20のアルキルとしては、メチル、エチルが好ましい。
ここで、より極性が高く、撥水性を抑制し、ポリマー材料としての水接触角をより低角度に設計できる観点から、構造単位〔A〕のX1、構造単位〔B〕のX2うち一方が-O-であり、他方が-CH2-であることが好ましい。
また、一般式(1)で表わされる繰り返し構造単位〔A〕に対応する環状オレフィンモノマーと一般式(2)で表わされる繰り返し構造単位〔B〕に対応する環状オレフィンモノマーとを開環メタセシス触媒で重合し、水添触媒のもとに水素添加した後、一般式(1)で表される構造単位〔A〕のうち、一部の構造単位〔A〕のR1~R4のエステルを酸またはアルカリで加水分解、または酸分解、または熱で分解して、一般式(3)で表される構造単位〔C〕を含有する環状オレフィンポリマーとすることにより得られるものであってもよい。
なお、R13~R16の一部は、カルボン酸または炭素数2~20のヒドロキシカルボニルアルキルから選ばれ、その他は、水素、炭素数1~20のアルキル、ハロゲン、炭素数1~20のハロゲン化アルキル、炭素数1~20のアルコキシ、炭素数2~20のアルコキシアルキル、炭素数2~20のアルコキシカルボニル、または炭素数6~20のアリールオキシカルボニルから選ばれる同じものであってもよい。
カルボン酸は、カルボキシル基を有する基(カルボン酸基)であり、たとえば、-COOHがあげられる。
炭素数2~20のヒドロキシカルボニルアルキルとしては、例えば、ヒドロキシカルボニルメチル、ヒドロキシカルボニルエチル、ヒドロキシカルボニルプロピル、ヒドロキシカルボニルブチル等があげられる。
炭素数1~20のアルキルとしては、例えば、メチル、エチル、プロピル、イソプロピル、n-ブチル、イソブチル、tert-ブチル、シクロペンチル、シクロヘキシル等があげられる。
炭素数1~20のハロゲン化アルキルとしては、例えば、フルオロメチル、クロロメチル、ブロモメチル、ジフルオロメチル、ジクロロメチル、ジブロモメチル、トリフルオロメチル、トリクロロメチルまたはトリブロモメチル等があげられる。
炭素数1~20のアルコキシとしては、例えば、メトキシ、エトキシ、n-プロポキシ、イソプロポキシ、n-ブトキシ、tert-ブトキシまたはメントキシ等があげられる。
炭素数2~20のアルコキシアルキルとしては、例えば、メトキシメチル、メトキシエチル、エトキシメチル、tert-ブトキシメチル、tert-ブトキシエチルまたはメトキシメンチル等があげられる。
炭素数2~20のアルコキシカルボニルとしては、メトキシカルボニル、エトキシカルボニル、n-プロポキシカルボニル、イソプロポキシカルボニル、n-ブトキシカルボニル、イソブトキシカルボニル、tert-ブトキシカルボニル等があげられる。
炭素数6~20のアリールオキシカルボニルとしては、例えば、フェノキシカルボニル、またはナフトキシカルボニル等があげられる。
さらに、R17、R18のアルキル基としては、例えば、メチル、エチル、プロピル等が挙げられる。
ここで、より極性が高く、撥水性を抑制し、ポリマー材料としての水接触角をより低角度に設計できる観点からは、構造単位〔A〕のX1、構造単位〔B〕のX2、構造単位〔C〕のX3のうち少なくとも1つが-O-であり、その他が-CH2-であることが好ましい。
5-メトキシメチルオキシカルボニル-7-オキサビシクロ[2.2.1]ヘプト-2-エン、5-エトキシメチルオキシカルボニル-7-オキサビシクロ[2.2.1]ヘプト-2-エン、5-(n-プロポキシメチルオキシカルボニル)-7-オキサビシクロ[2.2.1]ヘプト-2-エン、5-イソプロポキシメチルオキシカルボニル-7-オキサビシクロ[2.2.1]ヘプト-2-エン、5-(n-ブトキシメチルオキシカルボニル)-7-オキサビシクロ[2.2.1]ヘプト-2-エン、5-(2-メチル-プロポキシメチルオキシカルボニル)-7-オキサビシクロ[2.2.1]ヘプト-2-エン、5-(tert-ブトキシメチルオキシカルボニル)-7-オキサビシクロ[2.2.1]ヘプト-2-エン、5-シクロペンチルオキシメチルオキシカルボニル-7-オキサビシクロ[2.2.1]ヘプト-2-エン、5-シクロヘキシルオキシメチルオキシカルボニル-7-オキサビシクロ[2.2.1]ヘプト-2-エン、5-シクロオクチルオキシメチルオキシカルボニル-7-オキサビシクロ[2.2.1]ヘプト-2-エン、5-ノルボルニルオキシメチルオキシカルボニル-7-オキサビシクロ[2.2.1]ヘプト-2-エン、5-(1-メチルシクロペンチルオキシメチルオキシカルボニル)-7-オキサビシクロ[2.2.1]ヘプト-2-エン、5-(1-エチルシクロペンチルオキシメチルオキシカルボニル)-7-オキサビシクロ[2.2.1]ヘプト-2-エン、5-(1-メチルノルボルニルオキシメチルオキシカルボニル)-7-オキサビシクロ[2.2.1]ヘプト-2-エン、5-(1-エチルノルボルニルオキシメチルオキシカルボニル)-7-オキサビシクロ[2.2.1]ヘプト-2-エン、5-(1-エトキシプロピルオキシメチルオキシカルボニル)-7-オキサビシクロ[2.2.1]ヘプト-2-エン、5-(1-エトキシ-1-メチルエチルオキシメチルオキシカルボニル)-7-オキサビシクロ[2.2.1]ヘプト-2-エン、5-(テトラヒドロフラン-2-イルオキシメチルオキシカルボニル)-7-オキサビシクロ[2.2.1]ヘプト-2-エン、5-(テトラヒドロピラン-2-イルオキシメチルオキシカルボニル)-7-オキサビシクロ[2.2.1]ヘプト-2-エン、5-(1-アダマンチルオキシメチルオキシカルボニル)-7-オキサビシクロ[2.2.1]ヘプト-2-エン、5-(2-アダマンチルオキシメチルオキシカルボニル)-7-オキサビシクロ[2.2.1]ヘプト-2-エン、5-メトキシカルボニルメチルオキシカルボニル-7-オキサビシクロ[2.2.1]ヘプト-2-エン、5-エトキシカルボニルメチルオキシカルボニル-7-オキサビシクロ[2.2.1]ヘプト-2-エン、5-(n-プロポキシカルボニルメチルオキシカルボニル)-7-オキサビシクロ[2.2.1]ヘプト-2-エン、5-イソプロポキシカルボニルメチルオキシカルボニル-7-オキサビシクロ[2.2.1]ヘプト-2-エン、5-(n-ブトキシカルボニルメチルオキシカルボニル)-7-オキサビシクロ[2.2.1]ヘプト-2-エン、5-イソブトキシカルボニルメチルオキシカルボニル-7-オキサビシクロ[2.2.1]ヘプト-2-エン、5-(tert-ブトキシカルボニルメチルオキシカルボニル)-7-オキサビシクロ[2.2.1]ヘプト-2-エン、5-シクロペンチルオキシカルボニルメチルオキシカルボニル-7-オキサビシクロ[2.2.1]ヘプト-2-エン、5-シクロヘキシルオキシカルボニルメチルオキシカルボニル-7-オキサビシクロ[2.2.1]ヘプト-2-エン、5-シクロオクチルオキシカルボニルメチルオキシカルボニル-7-オキサビシクロ[2.2.1]ヘプト-2-エン、5-ノルボニルオキシカルボニルメチルオキシカルボニル-7-オキサビシクロ[2.2.1]ヘプト-2-エン、5-(1-メチルシクロペンチルオキシカルボニルメチルオキシカルボニル)-7-オキサビシクロ[2.2.1]ヘプト-2-エン、5-(1-エチルシクロペンチルオキシカルボニルメチルオキシカルボニル)-7-オキサビシクロ[2.2.1]ヘプト-2-エン、5-(1-メチルノルボルニルオキシカルボニルメチルオキシカルボニル)-7-オキサビシクロ[2.2.1]ヘプト-2-エン、5-(1-エチルノルボルニルオキシカルボニルメチルオキシカルボニル)-7-オキサビシクロ[2.2.1]ヘプト-2-エン、5-(1-エトキシプロピルオキシカルボニルメチルオキシカルボニル)-7-オキサビシクロ[2.2.1]ヘプト-2-エン、5-(1-エトキシ-1-メチルエチルオキシカルボニルメチルオキシカルボニル)-7-オキサビシクロ[2.2.1]ヘプト-2-エン、5-(テトラヒドロフラン-2-イルオキシカルボニルメチルオキシカルボニル)-7-オキサビシクロ[2.2.1]ヘプト-2-エン、5-(テトラヒドロピランー2-イルオキシカルボニルメチルオキシカルボニル)-7-オキサビシクロ[2.2.1]ヘプト-2-エン、5-(1-アダマンチルオキシカルボニルメチルオキシカルボニル)-7-オキサビシクロ[2.2.1]ヘプト-2-エン、5-(2-アダマンチルオキシカルボニルメチルオキシカルボニル)-7-オキサビシクロ[2.2.1]ヘプト-2-エン、5-シアノ-7-オキサビシクロ[2.2.1]ヘプト-2-エン、5-シアノメチル-7-オキサビシクロ[2.2.1]ヘプト-2-エン、5-シアノエチル-7-オキサビシクロ[2.2.1]ヘプト-2-エン、5-シアノプロピル-7-オキサビシクロ[2.2.1]ヘプト-2-エン等が挙げられる。
例えば、W(N-2,6- Pri 2C6H3)(thf)(OBut)2Cl2、W(N-2,6- Pri 2C6H3)(thf)(OCMe2CF3)2Cl2等のタングステン系ハロゲン錯体や、Mo(N-2,6- Pri 2C6H3)(thf)(OBut)2Cl2、Mo(N-2,6-Pri 2C6H3)(thf)(OCMe2CF3)2Cl2(式中、Priはiso-プロピル基、Butはtert-ブチル基、thfはテトラヒドロフランを表す。)等のモリブデン系ハロゲン錯体と、助触媒として有機アルミニウム化合物、有機錫化合物またはリチウム、ナトリウム、マグネシウム、亜鉛、カドミウム、ホウ素等の有機金属化合物とから成る開環メタセシス触媒、
また、アミン化合物、エステル化合物、エーテル化合物などの電子供与性化合物の存在下におけるMoCl6、WCl6、ReCl5、TiCl4、RuCl3、IrCl3等の無機遷移金属ハロゲン化合物と、助触媒としての前述したルイス酸との組合せによる開環メタセシス触媒を用いることができる。
水素添加物は、環状オレフィンポリマーの不飽和結合に水添触媒の存在下で、水素を好ましくは50%~100%、より好ましくは80%~100%、さらに好ましくは90%~100%の割合で添加して得ることができる。
本発明の精製方法は、前記環状オレフィンポリマーと、触媒に由来する金属成分とが含まれる液に対し、塩基性および酸性官能基を含有する有機化合物を接触させ、該金属成分と該有機化合物の塩基性官能基とで配位または電荷移動相互作用等により会合物を形成する工程(第一工程)と、
前記液を塩基性吸着剤に接触させることで、前記会合物を塩基性吸着剤に接触させて、会合物の有機化合物に由来する酸性官能基と塩基性吸着剤とをイオン結合または水素結合などの物理的相互作用によって吸着させ、会合物の金属成分を除去する(第二工程)とを含む。これらの二つの工程によってヘテロ原子を含有する、極性の高い環状オレフィンポリマーから製造触媒金属成分を除去することができる。
ここで、前記環状オレフィンポリマーと、金属成分とが含まれる液は、環状オレフィンポリマーや、金属成分が液中に溶解していてもよく、また、環状オレフィンポリマーや金属成分が溶解していなくてもよい。
この塩基性官能基としては、少なくともπ電子を有する共役二重結合炭素、窒素、酸素、リンおよび/または硫黄原子を含有する官能基が好ましく、例えば、フェニル基、シクロペンタジエニル基、アミノ基、ピリジンやフェナントロリン等の含窒素縮合複素環系官能基、エーテル基、シアノ基、水酸基、エステル基、カルボニル基、ホスフィン、ホスフェート等のリン含有官能基、チオエーテル基、チオール基、スルホニル基などの官能基が挙げられ、特に、金属成分との会合力の強さの観点から、ピリジン、フェナントロリン等の含窒素縮合複素環系官能基が好ましい。
さらに、該有機化合物の酸性官能基は、プロトンを与える官能基、すなわち、プロトン供与体であり、フェノール水酸基、リン酸、ホウ酸、カルボン酸、スルホン酸(リン酸基、ホウ酸基、カルボキシル基、スルホ基)等のいずれか含む官能基であり、塩基性吸着剤とイオン結合または水素結合などの物理的相互作用によって吸着する能力を要する官能基であればよく、特に、吸着力の観点から、カルボン酸、スルホン酸が好ましい。
なかでも、金属成分の除去の観点から、ニコチン酸、イソニコチン酸、ピコリン酸、2,2'-ビピリジン-4,4'-ジカルボン酸、3-ピリジンスルホン酸が好ましい。
また、塩基性官能および酸性官能基を含有する有機化合物は、環状オレフィンポリマーを含む液にそのまま添加しても、溶媒に分散または溶解した状態で添加してもよく、その有機化合物の溶解度を上げるためにメタノール、エタノール等のアルコール、DMFまたは水等の極性の高い溶媒を混合してもよい。
セルロース繊維の濾過材としては濾紙が好ましく、炭化水素系高分子繊維の濾過材としてはポリプロピレン、テフロンが好ましい。また濾過材は洗浄して再度使用してもよい。また、濾過方法としては、加圧濾過、減圧濾過等があげられ、いずれの方法でも特に制限は無い。
減圧濾過の場合、減圧度は、大気圧未満であれば特に制限は無い。濾過材の孔径は、通常、0.01μm~50μm、好ましくは0.02μm~20μm、さらに好ましくは0.05μm~10μmである。
塩基性吸着剤に含まれる塩基性官能基としては、窒素および/またはリンを含有する官能基であり、好ましくはアミノ基である。また、塩基性吸着剤は溶媒に不溶であることが好ましく、塩基性吸着剤は、無機化合物でも有機化合物でもよい。
本発明で使用される塩基性吸着剤としては、陰イオン交換樹脂や、両性イオン交換樹脂があげられる。例えば、-N+(CH3)3OH-を有するスチレン系イオン交換樹脂、-N(CH3)2(C2H4OH)OH-を有するスチレン系イオン交換樹脂、-NH(CH2CH2NH)nH(n=1~10)を有するスチレン系イオン交換樹脂、-N(CH3)2を有するスチレン系イオン交換樹脂、-N(CH2COONa)2を有するスチレン系イオン交換樹脂、-N(CH2COOH)2を有するスチレン系イオン交換樹脂、ピリジン環を有するスチレン系イオン交換樹脂、-N(CH3)2を有するアクリル系イオン交換樹脂、チオ尿素残基を有するスチレン系イオン交換樹脂、-N(CH3)CH2[CH(OH)]4CH2OHを有するスチレン系イオン交換樹脂、-P(=O)(OCH2NH2)3を有するスチレン系イオン交換樹脂、ジ-2-エチルヘキシルホスフェートを含浸させたポリスチレン系イオン交換樹脂、-NH(CH2CH2NH)nH(n=1~20)を有するエポキシ系イオン交換樹脂などが挙げられ、これらの官能基を有する化合物を合成樹脂にグラフトまたは共重合してもよく、かつ溶媒に不溶な固体にするために架橋しても、これらの合成樹脂の分子量を溶媒に不溶になるように高くしてもよい。
酸性吸着剤は、塩基性吸着剤と混合しても、塩基性吸着剤と接触処理した後に溶液と接触しても何れでもよい。酸性吸着剤の使用量は、塩基性吸着剤の体積を1とした場合、体積比として、0.01~1であり、好ましくは、0.1~0.5である。
図1に示すように、容器1内において、前述した環状オレフィンポリマーと金属成分とを含む液と、前述した塩基性官能基および酸性官能基を含有する有機化合物とを混合させる。そして、金属成分と、前記有機化合物との会合物を形成する。
その後、塩基性吸着剤を入れた充填塔2に前記会合物を含む溶液を通液させ、容器1に戻す。ここで、図1の符号3はポンプを示している。
また、図2に示すように、図1と同様、容器1内において、前述した環状オレフィンポリマーと金属成分とを含む液と、前述した塩基性官能基および酸性官能基を含有する有機化合物とを混合させる。その後、塩基性吸着剤を入れた充填塔2に会合物を含む溶液を通液させ、その後、受液容器4で回収する。
なお、図1,2において、充填塔2への通液方向は、充填塔2の上から下、または下から上のいずれの方向であってもよい。下から上への通液方向の場合、塩基性吸着剤を入れた充填塔2は、固定床または流動床のいずれでもよい。また、容器1から会合物を含む溶液の充填塔2への送液は、容器1下部の管から抜出しても、容器1上部から管を入れて溶液を抜出してもよい。
一方で、図3に示すような装置を使用してもよい。容器5内で、前述した環状オレフィンポリマーと金属成分とを含む液と、前述した塩基性官能基および酸性官能基を含有する有機化合物とを混合させる。そして、金属成分と、前記有機化合物との会合物を形成する。
その後、塩基性吸着剤を容器5内に入れ、撹拌混合する。その後、容器5内の混合物を濾過器6に通し、塩基性吸着剤を濾過し、濾過した溶液を受液容器7に導入する。
なお、残留金属成分の下限値は、特に制限はないが、通常10ppb以上である。
また、必要に応じて、酸化防止剤、界面活性剤、可塑剤等の改質剤、紫外線吸収剤、抗菌剤などの安定剤、ガラス繊維、無機充填剤などの補強剤を加えてもよい。
重量平均分子量測定;
ゲルパーミッションクロマトグラフ(GPC)でポリマー試料10mgに対してテトラヒドロフラン2gで溶解し、日本分光製830-RIおよびUVIDEC-100-VIを検出器として40℃、1.0ml/分の流量で、ポリスチレンスタンダードで分子量較正したカラムShodex k-805、804、803と802.5を直列に繋ぎ、同流量で測定した。
ポリマー試料を重水素化クロロホルムに溶解し、270MHz、1H-NMRスペクトルのケミカルシフトδ=4.0~6.5ppm範囲で二重結合炭素の水素に帰属するピークの積分値で測定した。
粉体のポリマー試料を容器に精秤し、硝酸と共にマイクロウエーブで熱分解処理し、残留金属成分をアジレント・テクノロジー(株)HP-4500のICP-MS装置で定量した。または、溶液のポリマー試料を容器に精秤し、加熱し溶媒を蒸発させた後、硝酸と共にマイクロウエーブで熱分解処理し、残留金属成分を同ICP-MS法により定量した。
ポリマー試料を重水素化テトラヒドロフランに溶解し、400MHz、13C-NMRスペクトルのケミカルシフトδ=170~190ppmの各カルボニルに帰属するピークの積分値でそれぞれの構造単位〔A〕、〔B〕、〔C〕のモル%比を測定した。
窒素雰囲気下で磁気攪拌装置を備えた5Lのオートクレーブに4,10-ジオキサ-トリシクロ[5.2.1.02,6]デカ-8-エン-3-オン、304g(2mol)、8-(1-エチルシクロペンチルオキシカルボニル)テトラシクロ[4.4.0.12,5.17,10]-3-ドデセン(601g、2mol)、および1,5-ヘキサジエン、21g(0.25mol)をテトラヒドロフラン(以下THFと記す)3.2kgに溶解し攪拌を行った。これに開環メタセシス重合触媒としてMo(N-2,6-Pri 2C6H3)(CHCMe2Ph)(OCMe(CF3)2)2、310mg(0.4mmol)を加え、60℃で3時間反応させた。その後、n-ブチルアルデヒド90mg(1.2mmol)を加えて冷却して、開環メタセシス重合体溶液4.1kgを得た。
5Lオートクレーブに得られた開環メタセシス重合体溶液3.0kgと、水添触媒として5%ルテニウムアルミナ33gを加え、水素圧8MPa、160℃で5時間水添反応を行った後、温度を室温まで戻し水素ガスを放出した。得られた溶液を孔径1μmのフィルターで濾過して、開環メタセシス重合体水素添加物溶液3.0kgを得た。
得られた開環メタセシス重合体水素添加物溶液10gを200mlの純水に加えて開環メタセシス重合体水素化物を析出させ、濾別分離後真空乾燥を行うことにより白色粉末状の開環メタセシス重合体水素化物2.1gを得た。得られた開環メタセシス重合体水素化物の1H-NMRから算出した水素添加率は100%であり、GPCで測定した重量平均分子量は15000であった。また、得られたポリマーの構造単位のモル%比は、13C-NMR分析により[A]/[B]=50/50であった。
得られた開環メタセシス重合体水素添加物溶液のモリブデン金属含有量は2.49ppm、ルテニウム金属含有量は3.76ppmであった。ポリマー溶液濃度は20.9wt%であり、ポリマー中のモリブデン金属含有量は12ppm、ルテニウム金属含有量は18ppmであった。
窒素雰囲気下で磁気攪拌装置を備えた1m3の反応機に4,10-ジオキサ-トリシクロ[5.2.1.02,6]デカ-8-エン-3-オン、55kg(360mol)、8-(1-エチルシクロペンチルオキシカルボニル)テトラシクロ[4.4.0.12,5.17,10]-3-ドデセン、108kg(360mol)、および1,5-ヘキサジエン(5kg、61mol)をTHF580kgに溶解し、Mo(N-2,6-Pri 2C6H3)(CHCMe2Ph)(OCMe(CF3)2)2、110g(144mmol)を加え、合成例1と同様に反応させ、開環メタセシス重合体溶液740kgを得た。
次いで、1m3オートクレーブで上記の溶液720kgにジクロロトリス(トリフェニルホスフィン)ルテニウム(47.9g、50.0mmol)とトリエチルアミン(5.1g、50mmol)を加え、水素圧9MPa、120℃で15時間水添反応を行った。冷却後、水素を放出し、開環メタセシス重合体水素添加物の溶液724kgを得た。
得られた開環メタセシス重合体水素添加物溶液10gを合成例1と同様に開環メタセシス重合体水素化物2.1gを得た。水素添加率は100%であり、重量平均分子量は12000であった。また、得られたポリマーの構造単位のモル%比は、[A]/[B]=50/50であった。水素添加物溶液のモリブデン金属含有量は16.4ppm、ルテニウム金属含有量は6.5ppmであった。ポリマー溶液濃度は21.0wt%、ポリマー中のモリブデン金属含有量は78ppm、ルテニウム金属含有量は31ppmであった。
窒素雰囲気下で磁気攪拌装置を備えた5Lのオートクレーブに4,10-ジオキサ-トリシクロ[5.2.1.02,6]デカ-8-エン-3-オン、48g(0.32mol)、8-(1-エチルシクロペンチルオキシカルボニル)テトラシクロ[4.4.0.12,5.17,10]-3-ドデセン、853g(2.84mol)、および1,6-ヘプタジエン、6g(65mmol)をTHF3.2kgに溶解し、Mo(N-2,6-Me2C6H3)(CHCMe2Ph)(OC(CF3)3)2、320mg(0.39mmol)を加え、合成例1と同様に反応させ、開環メタセシス重合体溶液4.1kgを得た。
5Lオートクレーブに得られた開環メタセシス重合体溶液3.0kgとジクロロトリス(トリフェニルホスフィン)ルテニウム、210mg(0.3mmol)とトリエチルアミン、12.8mg(0.1mmol)を加え、水素圧9MPa、120℃で6時間水添反応を行った。合成例1と同様に冷却後、水素を放出し、開環メタセシス重合体水素添加物の溶液3.1kgを得た。
得られた開環メタセシス重合体水素添加物溶液10gを合成例1と同様に開環メタセシス重合体水素化物2.1gを得た。水素添加率は100%であり、重量平均分子量は17000であった。また、得られたポリマーの構造単位のモル%比は、[A]/[B]=90/10であった。水素添加物溶液のモリブデン金属含有量は8.40ppm、ルテニウム金属含有量は6.72ppmであった。ポリマー溶液濃度は21.0wt%、ポリマー中のモリブデン金属含有量は40ppm、ルテニウム金属含有量は32ppmであった。
環状オレフィンモノマーとして、4,10-ジオキサ-トリシクロ[5.2.1.02,6]デカ-8-エン-3-オン(456g、3mol)、8-(1-エチルシクロペンチルオキシカルボニル)テトラシクロ[4.4.0.12,5.17,10]-3-ドデセン、300g(1mol)、1,5-ヘキサジエン、36.5g(0.44.mol)をTHF3.0kgに溶解し、Mo(N-2,6-Me2C6H3)(CHCMe2Ph)(OC(CF3)3)2、410mg(0.5mmol)を加え、合成例3と同様に反応させ、開環メタセシス重合体溶液3.8kgを得た。
合成例3と同様に開環メタセシス重合体溶液3.0kgと5%パラジウムカーボン(Pd/C)50gを加え、合成例3と同様に水添反応を行い、開環メタセシス重合体水素添加物溶液2.9kgを得た。
水素添加物溶液10gを合成例1と同様に開環メタセシス重合体水素化物1.9gを得た。水素添加率は80%であり、重量平均分子量は8900であった。また、得られたポリマーの構造単位のモル%比は[A]/[B]=25/75であった。水素添加物溶液のモリブデン金属含有量は8.80ppm、パラジウム金属含有量は11.5ppmであり、ポリマー溶液濃度は19.2wt%、ポリマー中のモリブデン金属含有量は46ppm、パラジウム金属含有量は60ppmであった。
環状オレフィンモノマーとして、4,10-ジオキサ-トリシクロ[5.2.1.02,6]デカ-8-エン-3-オン、304g(2mol)、8-メトキシメチルオキシカルボニル-テトラシクロ[4.4.0.12,5.17,10]-3-ドデセン、496g(2mol)、1-オクテン、115g(1mol)をTHF3.2kgに溶解し、W(N-2,6-Pri 2C6H3)(CHCMe2Ph)(OCMe(CF3)2)2、420mg(0.5mmol)を加え、合成例3と同様に反応させ、開環メタセシス重合体溶液3.9kgを得た。
合成例3と同様に開環メタセシス重合体溶液3.0kg、クロロトリス(トリフェニルホスフィン)ロジウム、240mg(0.26mmol)とトリエチルアミン、26mg(0.26mmol)を加え、合成例3と同様に水添反応を行い、開環メタセシス重合体水素添加物の溶液3.0kgを得た。
得られた開環メタセシス重合体水素添加物溶液10gを合成例1と同様に開環メタセシス重合体水素化物1.9gを得た。水素添加率は100%であり、重量平均分子量は8000であった。また、得られたポリマーの構造単位のモル%比は、[A]/[B]=50/50であった。また、水素添加物溶液のタングステン金属含有量は20.8ppm、ロジウム金属含有量は7.94ppmであり、ポリマー溶液濃度は18.9wt%、ポリマー中のタングステン金属含有量は110ppm、ロジウム金属含有量は42ppmであった。
環状オレフィンモノマーとして、8-シアノ-テトラシクロ[4.4.0.12,5.17,10]-3-ドデセン、741g(4mol)、1-ヘキセン、22g(0.26mol)をTHF3.0kgに溶解し、Mo(N-2,6-Pri 2C6H3)(CHCMe2Ph)(OCMe3)2、220mg(0.4mmol)を加え、合成例3と同様に反応させ、開環メタセシス重合体溶液3.8kgを得た。
合成例3と同様に開環メタセシス重合体溶液3.0kg、クロロヒドリドカルボニルトリス(トリフェニルホスフィン)ルテニウム0.18g(0.19mmol)とトリエチルアミン20mg(0.19mmol)を加え、合成例3と同様に水添反応を行い、開環メタセシス重合体水素添加物の溶液3.0kgを得た。
得られた開環メタセシス重合体水素添加物溶液10gを合成例1と同様に開環メタセシス重合体水素化物1.9gを得た。水素添加率は100%であり、重量平均分子量は19000であった。また、水素添加物溶液のモリブデン金属含有量は9.45ppm、ルテニウム金属含有量は5.86ppmであり、ポリマー溶液濃度は18.9wt%、ポリマー中のモリブデン金属含有量は50ppm、ルテニウム金属含有量は31ppmであった。
環状オレフィンモノマーとして、8-メトキシカルボニルテトラシクロ[4.4.0.12,5.17,10]-3-ドデセン、655g(3mol)、1,5-ヘキサジエン、6.6g(81mmol)をTHF3.1kgに溶解し、Mo(N-2,6-Pri 2C6H3)(CHCMe2Ph)(OCMe(CF3)2)2、230mg(0.3mmol)を加え、合成例3と同様に反応させ、開環メタセシス重合体溶液3.8kgを得た。
得られた開環メタセシス重合体水素添加物溶液10gを合成例1と同様に開環メタセシス重合体水素化物2.1gを得た。水素添加率は100%であり、重量平均分子量は28000であった。また、水素添加物溶液のモリブデン金属含有量は6.75ppm、ルテニウム金属含有量は6.33ppmであり、ポリマー溶液濃度は21.1wt%、ポリマー中のモリブデン金属含有量は32ppm、ルテニウム金属含有量は30ppmであった。
合成例1では、構造単位[A]と構造単位[A]とのモル比が50:50であることを示している。他の合成例においても同様の方法で表示している。
2Lオートクレーブに、合成例1で得られた開環メタセシス重合体水素添加物のTHF溶液1kg、イソニコチン酸1.44g(11.7mmol)、および水27gを入れて、窒素雰囲気下で攪拌しながら100℃で6時間加熱した後、室温に冷却した。
この溶液を孔径0.5μmのテフロン製メンブレンフィルターで加圧濾過した後、ポリアミンを含有する(アミノ基を含有する)スチレン系イオン交換樹脂ダイアイオンCR20(三菱化学株式会社製)400mlを加え、室温で1時間攪拌した後、前記イオン交換樹脂を濾過により分離した。
このようにして得られた開環メタセシス重合体水素添加物溶液のうち10gを200mlの純水に加えて開環メタセシス重合体水素化物を析出させ、濾別分離後真空乾燥を行うことにより白色粉末状の開環メタセシス重合体水素化物1.80gを得た。得られた開環メタセシス重合体水素添加物の構造単位のモル%比は、13C-NMR分析により[A]/[B]=50/50で、ポリマー中のモリブデン金属含有量は160ppb、ルテニウム金属含有量は240ppbであった。
2Lオートクレーブに、合成例2で得られた開環メタセシス重合体水素添加物のTHF溶液1kgにイソニコチン酸と水を実施例1と同様に加え、100℃で3時間加熱し、室温に冷却した(第一工程)。次いで、この冷却した溶液に対し、ダイアイオンCR20を400ml加えた(第二工程)。さらに、第一工程、第二工程をこの順でもう一度繰り返した。
このようにして得られた開環メタセシス重合体水素添加物溶液のうち10gを実施例1と同様に析出させ、開環メタセシス重合体水素化物1.7gを得た。得られた開環メタセシス重合体水素添加物の構造単位のモル%比は、[A]/[B]=50/50で、ポリマー中のモリブデン金属含有量は100ppb、ルテニウム金属含有量130ppbであった。
実施例2の精製溶液(第一工程、第二工程を2回繰り返した後の液)1kgに3-ピリジンスルホン酸0.1g(0.6mmol)と水27gを加え、窒素雰囲気下で攪拌しながら100℃で3時間加熱し、室温に冷却した。
この溶液を濾過し、ダイアイオンCR20を400ml加え、濾過した。
このようにして得られた開環メタセシス重合体水素添加物溶液のうち10gを実施例2と同様に析出させ、開環メタセシス重合体水素化物1.7gを得た。得られた開環メタセシス重合体水素添加物の構造単位のモル%比は、[A]/[B]/[C]=45/50/5で、ポリマー中のモリブデン金属含有量は40ppb、ルテニウム金属含有量80ppbであった。
この実施例では、酸強度の高い3-ピリジンスルホン酸を使用することで、構成単位[B]のエステルの一部が酸脱離し、構成単位[C]が生成している。
実施例2の精製溶液(第一工程、第二工程を2回繰り返した後の液)1kgに2,2'-ビピリジン-4,4'-ジカルボン酸2.7g(11mmol)と水27gを加え、窒素雰囲気下で攪拌しながら110℃で6時間加熱し、室温に冷却した。この溶液を濾過し、ダイアイオンCR20を200ml加え、その後濾過した。
このようにして得られた開環メタセシス重合体水素添加物の溶液のうち10gを実施例2と同様に析出させ、開環メタセシス重合体水素化物1.6gを得た。得られた開環メタセシス重合体水素添加物の構造単位のモル%比は、[A]/[B]=50/50で、ポリマー中のモリブデン金属含有量は80ppb、ルテニウム金属含有量は100ppbであった。
合成例3で得られた開環メタセシス重合体水素添加物1kgにピコリン酸1.2g(9.8mmol)加え、窒素雰囲気下で攪拌しながら100℃で6時間加熱し、室温に冷却した(第一工程)。この溶液を濾過し、ダイアイオンCR20を400ml加えた(第二工程)。さらに、第一工程、第二工程をこの順でもう一度繰り返した。
このようにして得られた開環メタセシス重合体水素添加物の溶液のうち10gを実施例2と同様に析出させ、開環メタセシス重合体水素化物1.6gを得た。得られた開環メタセシス重合体水素添加物の構造単位のモル%比は、[A]/[B]=90/10で、ポリマー中のモリブデン金属含有量は110ppb、ルテニウム金属含有量は180ppbであった。
合成例4で得られた開環メタセシス重合体水素添加物1kgにイソニコチン酸2.5g(20mmol)と水27gを加え、窒素雰囲気下で攪拌しながら110℃で6時間加熱した後、室温に冷却した(第一工程)。この溶液を濾過し、塩基性吸着剤ダイアイオンCR20を300mlとスルホン酸基を含有する酸性吸着剤のスチレン系イオン交換樹脂レバチットS100H(バイエル社製)100mlとを混合し、実施例2と同様にして第二工程を行った。第一工程、第二工程をさらに、2回繰り返し行った。
このようにして得られた開環メタセシス重合体水素添加物の溶液のうち10gを実施例2と同様に析出させ、開環メタセシス重合体水素化物1.6gを得た。得られた開環メタセシス重合体水素添加物の構造単位のモル%比は、[A]/[B]=25/75で、ポリマー中のモリブデン金属含有量は133ppb、パラジウム金属含有量は53ppbであった。
合成例5で得られた開環メタセシス重合体水素添加物1kgにニコチン酸1.5g(12mmol)と水27gを加え、窒素雰囲気下で攪拌しながら110℃で6時間加熱した後、室温に冷却した(第一工程)。この溶液を濾過し、実施例6と同様にダイアイオンCR20300mlとレバチットS100H100mlとを混合し、第二工程を行った。さらに、第一工程、第二工程をこの順でもう一度繰り返した。
このようにして得られた開環メタセシス重合体水素添加物の溶液のうち10gを実施例6と同様に析出させ、開環メタセシス重合体水素化物1.7gを得た。得られた開環メタセシス重合体水素添加物の構造単位のモル%比は、[A]/[B]=50/50で、ポリマー中のタングステン金属含有量は115ppb、ロジウム金属含有量は160ppbであった。
合成例2で得られた開環メタセシス重合体水素添加物にかえて、合成例6で得られた開環メタセシス重合体水素添加物1kgを使用したこと、イソニコチン酸にかえて3-ピリジンスルホン酸0.1g(0.6mmol)を使用したこと、ダイアイオンCR20、300mlを用いたこと以外は、実施例2と同様に行った。
このようにして得られた開環メタセシス重合体水素添加物の溶液のうち10gを実施例2と同様に析出させ、開環メタセシス重合体水素化物1.6gを得た。ポリマー中のモリブデン金属含有量は63ppb、ルテニウム金属含有量は200ppbであった。
合成例2で得られた開環メタセシス重合体水素添加物にかえて、合成例7で得られた開環メタセシス重合体水素添加物1kgとイソニコチン酸1.2g(9.8mmol)とダイアイオンCR20、300mlを用いたこと以外は、実施例2と同様に行った。
このようにして得られた開環メタセシス重合体水素添加物の溶液のうち10gを実施例2と同様に析出させ、開環メタセシス重合体水素化物1.7gを得た。ポリマー中のモリブデン金属含有量は40ppb、ルテニウム金属含有量は180ppbであった。
実施例2においてダイアイオンCR20を塩基性吸着剤CH2NH(CH2CH2NH)nH基を含有するスチレン系イオン交換樹脂ダイアイオンWA20(三菱化学株式会社製)600mlに代えたこと以外は実施例2と同様に行った。
このようにして得られた開環メタセシス重合体水素添加物の溶液のうち10gを実施例2同様に析出させ、開環メタセシス重合体水素化物1.61gを得た。得られた開環メタセシス重合体水素添加物の構造単位のモル%比は、[A]/[B]=50/50で、ポリマー中のモリブデン金属含有量は136ppb、ルテニウム金属含有量は184ppbであった。
250L反応機に合成例2の開環メタセシス重合体水素添加物のTHF溶液(ポリマー濃度20.7wt%)165kgと、イソニコチン酸243g(2mol)と水(4.7kg)とを加え、窒素雰囲気下で攪拌しながら100℃で6時間加熱した後、室温に冷却した(第一工程)。
ダイアイオンCR20、25Lを内径250mmの塔に充填し、反応機下部からの配管でポンプを経由し塔の下部に接続し、反応機上部へ戻す循環配管を形成した。第一工程で得られた溶液を15~25℃に保ちながら、1m3/時間のポンプ流量、通液流速SV=40(1/時間)で反応機下部から塔に送液し、反応機へ戻しながら8時間で連続運転した。塔および配管内の溶液を反応機にすべて戻した(第二工程)。さらに、第一工程、第二工程をこの順でもう一度繰り返した。
第二工程後の溶液を反応機から採取し、実施例2同様に析出させ、白色粉末状の開環メタセシス重合体水素化物の残留金属分析を行った結果、ポリマー中のモリブデン金属含有量は118ppb、ルテニウム金属含有量は182ppbであった。
250L反応機に合成例2の開環メタセシス重合体水素添加物のTHF溶液165kgと、イソニコチン酸243g(2mol)と水4.7kgとを加え、窒素雰囲気下で攪拌しながら100℃で6時間加熱した後、室温に冷却した(第一工程)。
ダイアイオンCR20を30LとレバチットS100Hを10Lとをそれぞれ内径250mmの塔に充填し、直列に反応機下部からの配管でポンプを経由しCR20塔の下部に接続し、反応機上部へ戻す循環配管を形成した。前工程液を25~30℃に保ちながら、1.2m3/時間のポンプ流量、それぞれの塔へ通液流速SV=40(1/時間)と120(1/時間)で反応機下部から塔に送液し、反応機へ戻しながら7時間で連続運転した。塔および配管内の溶液を反応機にすべて戻した(第二工程)。さらに、第一工程、第二工程をこの順でもう一度繰り返した。
次いで、第一工程および第二工程を2回行った溶液に、3-ピリジンスルホン酸20g(0.1mol)と水を加え、窒素雰囲気下で攪拌しながら100℃で4時間加熱した後、室温に冷却した液を後25~30℃に保ちながら、0.8m3/時間のポンプ流量、それぞれの塔へ通液流速SV=27(1/時間)と80(1/時間)で7時間連続運転した(第二工程)。塔および配管内の液を反応機にすべて戻した。
この液を反応機から採取し、実施例2と同様に析出させ、白色粉末状の開環メタセシス重合体水素化物の残留金属分析を行った結果、ポリマー中のモリブデン金属含有量は80ppb、ルテニウム金属含有量は105ppbであり、構造単位のモル%比は、[A]/[B]/[C]=42/50/8であった。
合成例2で得られた開環メタセシス重合体水素添加物のTHF溶液1kg、イソニコチン酸1.44g(11.7mmol)、および水27gを入れて、実施例2と同様に窒素雰囲気下で攪拌しながら100℃で6時間加熱した後、室温に冷却した。
この溶液を孔径0.5μmのテフロン製メンブレンフィルターで濾過し、濾過液10gを200mlの水に加えて開環メタセシス重合体水素添加物を析出させ、濾別分離後真空乾燥を行うことにより白色粉末状の開環メタセシス重合体水素添加物1.95gを得た。 ポリマー中のモリブデン金属含有量は69ppm、ルテニウム金属含有量は30ppmであり、残留金属量はまったく変らず、効果は認められなかった。
比較例1と同様のポリマーTHF溶液1kgをテフロン製メンブレンフィルターで濾過し、ダイアイオンCR20を400ml加え、室温で1時間攪拌した後、イオン交換樹脂を濾過により分離した。この開環メタセシス重合体水素添加物の溶液のうち10gを比較例1と同様に析出させ、開環メタセシス重合体水素化物1.8gを得た。ポリマー中のモリブデン金属含有量は47ppm、ルテニウム金属含有量は30ppmであり、効果は認められなかった。
比較例1と同様のポリマーTHF溶液1kgにトリメチレンジアミン360mg(4.9mmol)を加え、室温で30分間攪拌し、ろ過した溶液をメタノール5.0kgに加え、開環メタセシス重合体水素添加物を析出させた。濾過後真空乾燥を行い、再びTHF800gに溶解し、クエン酸0.9g(4.7mmol)を加え、室温で30分間攪拌し、ろ過した溶液をメタノール5.0kgに加え、開環メタセシス重合体水素添加物を析出させ真空乾燥を行うことにより白色粉を得た。得られたポリマー中のモリブデン金属含有量は32ppm、ルテニウム金属含有量は30ppmであり、効果は認められなかった。
比較例1と同様のポリマーTHF溶液1kgを100mlの活性アルミナ(和光純薬工業社製)相に流通流速SV=40で流通させ、同様な操作を2回繰り返した。この開環メタセシス重合体水素添加物の溶液のうち10gを比較例1と同様に析出させ、開環メタセシス重合体水素化物1.8gを得た。ポリマー中のモリブデン金属含有量は78ppm、ルテニウム金属含有量は30ppmであり、残留金属量はまったく変らず、効果は認められなかった。
Claims (13)
- 少なくとも一般式(1)で表される繰返し構造単位〔A〕を含有する環状オレフィンポリマーおよび金属成分を含む液と、塩基性官能基および酸性官能基を含有する有機化合物とを接触させ、次いで、前記液を塩基性吸着剤に接触させて、前記液中に含まれる金属成分を除去するポリマーの精製方法。
- 前記金属成分がモリブデン、ルテニウム、タングステン、パラジウム、ロジウムのいずれかである請求項1に記載のポリマーの精製方法。
- 前記有機化合物の塩基性官能基が電子対供与体であり、酸性官能基がプロトン供与体である請求項1または2に記載のポリマーの精製方法。
- 塩基性官能基および酸性官能基を含有する前記有機化合物が、ニコチン酸、イソニコチン酸、ピコリン酸、2,2'-ビピリジン-4,4'-ジカルボン酸、3-ピリジンスルホン酸のいずれかである請求項1~3のいずれかに記載のポリマーの精製方法。
- 前記塩基性吸着剤に含まれる塩基性官能基がアミノ基である請求項1~4のいずれかに記載のポリマーの精製方法。
- 前記環状オレフィンポリマーを含む前記液と、塩基性官能基および酸性官能基を含有する前記有機化合物とを接触させ、前記液中に含まれる前記金属成分と、前記有機化合物とにより会合物を形成し、
前記会合物が形成された前記液に塩基性吸着剤を接触させて、前記液中に含まれる会合物を前記塩基性吸着剤に吸着させて、前記液中に含まれる前記金属成分を除去する請求項1~5のいずれかに記載のポリマーの精製方法。 - 前記環状オレフィンポリマーを含む前記液と、塩基性官能基および酸性官能基を含有する有機化合物とを接触させた後、塩基性吸着剤を入れた充填塔に前記環状オレフィンポリマーを含む前記液を通し、前記金属成分を除去する請求項1~6のいずれかに記載のポリマーの精製方法。
- 前記環状オレフィンポリマーを含む前記液と、塩基性官能基および酸性官能基を含有する有機化合物とを混合し、その後、この混合物に対し、前記塩基性吸着剤を添加した後、前記塩基性吸着剤を分離し、前記金属成分を除去する請求項1~6のいずれかに記載のポリマーの精製方法。
- 前記繰返し構造単位〔A〕のX1、前記繰返し構造単位〔B〕のX2うち一方が-O-であり、他方が-CH2-である請求項9に記載のポリマーの精製方法
- 前記環状オレフィンポリマーが、前記繰返し構造単位〔B〕と一般式(3)で表される繰返し構造単位〔C〕とを有し、繰返し構造単位〔A〕と繰返し構造単位〔B〕と繰返し構造単位〔C〕とのモル比(〔A〕+〔B〕)/〔C〕が(〔A〕+〔B〕)/〔C〕=95/5~5/95である請求項9記載のポリマーの精製方法。
- 前記繰返し構造単位〔A〕のX1、前記繰返し構造単位〔B〕のX2、前記繰返し構造単位〔C〕のX3のうち少なくとも1つが-O-であり、その他が-CH2-である請求項11に記載のポリマーの精製方法。
- 請求項1~12に記載のいずれかに記載の精製方法によって得られた、全残留金属成分の含有量が1000ppb以下である環状オレフィンポリマー。
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